Best GH KH Mineral for Low TDS: 10 Shrimp Picks 2026

Brightwell Aquatics NeoTiger KH+/GH+ is a liquid remineralizer made to rebuild purified RO, DI or very soft water for freshwater shrimp tanks. It is built for Neocaridina and Tiger shrimp keepers, plus planted tank hobbyists who need stable GH and KH from a blank slate.

Standout performance comes from its balanced calcium, magnesium, potassium and sodium blend that supports molting, color and osmoregulation. In daily use, each ml raises hardness predictably, so water changes and new setups stay consistent while plants benefit from trace elements and silica.

The 2 liter liquid format is convenient and clean compared to mixing dry salts, with clear dosing for fine tuning. As an American made Brightwell Aquatics product, packaging feels sturdy and professional, and the solution mixes fast without clouding when dosed correctly.

The main limitation is specificity, since this KH plus GH formula is not suited for Crystal Bee shrimp that prefer very low KH. Beginners will also need liquid test kits for GH and KH to avoid overcorrecting, and the large bottle takes up storage space.

For RO/DI users keeping Neocaridina or Tigers in planted tanks, NeoTiger KH+/GH+ is a reliable all in one solution. It simplifies remineralizing, stabilizes chemistry and supports both livestock and plants for long term success.

Brand: Brightwell Aquatics, Model: NTKHGH2L, UPC: 096647000077, Volume: 2 liters liquid concentrate.

Use: Freshwater Neocaridina and Tiger shrimp plus planted community tanks using RO, DI or soft tap water.

Form: Liquid water conditioner that adds GH, KH, calcium, magnesium, potassium, sodium, trace elements and silica.

Choose NeoTiger KH+/GH+ if you use RO or DI water and keep Neocaridina or Tiger shrimp with live plants. Choose a GH only product instead if you keep Crystal Red or Black Bee shrimp that need minimal KH.

Always test GH and KH before and after dosing, then add to new water before it goes in the tank. Start with the label dose, adjust slowly and keep a log for consistent water changes.

SaltyShrimp Bee Shrimp Mineral GH+ is a specialized remineralizer designed for Caridina keepers using RO, distilled, rainwater or fully desalinated water. It is built for Crystal Red and Black, Bee, Bumblebee and Tiger shrimp that thrive in soft, low KH water.

Its standout formula raises general hardness without significantly raising carbonate hardness, creating the ideal low KH to GH balance for molting and breeding. Keepers report more stable parameters, stronger coloration, active breeding and better shrimplet survival compared to tap water conditioners.

The fine powder dissolves cleanly and doses precisely for small to mid size aquariums, and the compact 110g jar stores easily and lasts a long time. It supplies essential minerals and trace elements that also benefit plant growth and help regenerate biological filter media.

It will not directly change pH, which is ideal for buffered aquasoil tanks but means you still need proper substrate and testing. Beginners will need a GH test kit and a TDS meter to dial in dosage, as overdosing can stress sensitive shrimp.

For anyone serious about keeping or breeding softwater Caridina shrimp, this is a proven, trusted staple. It delivers consistent water chemistry and healthier colonies, making it highly recommended for dedicated shrimp tanks.

Brand: SALTYSHRIMP, Model: SSM-NBSM-110, Form: Soluble mineral powder, Size: 110g jar for remineralizing RO water.

Target Species: Bee shrimp, Crystal Red and Black, Bumblebee, Tiger and other softwater Caridina shrimp. Function: Raises GH without significantly raising KH and does not directly affect pH.

Source Water: RO water, distilled water, rainwater or fully desalinated water. Best used with GH and TDS testing for precise control in planted and breeding tanks.

Start with clean RO or distilled water, then dissolve the measured powder fully in a separate container before adding to the aquarium. Aim for the GH and TDS range recommended for your specific Caridina species, typically around GH 5 to 6.

Always test with a liquid GH kit and TDS meter rather than guessing, and adjust slowly during water changes to avoid swings. Store the jar sealed and dry to keep the powder free flowing and effective.

SaltyShrimp Bee Shrimp Mineral GH+ is a specialized remineralizer designed for bee shrimp, crystal shrimp, bumblebee and tiger shrimp keepers using RO, distilled or rainwater. If you breed softwater Caridina species, this powder creates the stable, low KH foundation they need.

It raises general hardness to around 6 dH and about 200 microsiemens conductivity without raising carbonate hardness. That balance supports clean molts, vivid color, active behavior and consistent breeding while keeping pH easy to lower under 7.

The fine powder dissolves almost completely within seconds when mixed outside the tank, so water changes are quick and clean. The 230g jar is compact, includes a measuring spoon for 3g per 20 liters, and seals tightly to stay fresh.

It is not a tap water conditioner and will not work correctly without pure source water plus testing. You will need a GH or TDS meter for precise dosing, and beginners must learn to pre mix rather than dose directly into the aquarium.

For dedicated Caridina keepers, this is a trusted, easy to use standard for health, color and reproduction. If you want stable softwater parameters and thriving colonies, Bee Shrimp Mineral GH+ is an essential staple.

Brand: SaltyShrimp, Model: SSM-NBSM-230, Form: Fast dissolving mineral powder, Size: 230g jar with measuring spoon.

Target Species: Bee shrimp, crystal shrimp, bumblebee shrimp and tiger shrimp. Source Water: RO water, distilled water, rainwater or fully desalinated water.

Target Parameters: About 6 dH total hardness and 200 plus or minus 50 microsiemens conductivity. KH Impact: Raises GH with minimal KH influence for softwater control.

Mix one level spoon, about 3g, per 20 liters of RO water outside the aquarium until dissolved. Add any remaining particles to the tank, then check GH or conductivity before use.

Use for water changes and new setups to maintain steady parameters rather than chasing swings. Close the jar tightly after each use and store in a cool, dry place.

SaltyShrimp Shrimp Mineral GH/KH+ 200g is a remineralizing salt that converts RO, rainwater or fully desalinated water into balanced aquarium water. It is built for Neocaridina shrimp such as cherry shrimp and other species that thrive at neutral pH.

It raises total hardness and carbonate hardness in a 1.0/0.5 ratio to reach about 6 dGH with stable buffering. In real tanks, keepers report cleaner molts, stronger color, more babies surviving and steadier parameters versus tap water.

The formula supplies all key minerals and trace elements for shrimp health, plus benefits for plants and filter bacteria. Quality is excellent with German manufacturing and consistent fine powder that dissolves in seconds. An included spoon makes dosing simple.

Drawbacks are modest but worth noting. Larger tanks or frequent changes go through the 200g can quickly, and the powder absorbs moisture if left open. New users may also need a liquid test kit to dial in the scoop level precisely.

For anyone using pure water for shrimp, this is the benchmark choice for ease and reliability. It delivers stable, breed ready water with minimal effort and is highly recommended for Neocaridina setups.

Mix one level measuring spoon of about 2g per 10 liters of RO, distilled or desalinated water outside the aquarium.

Stir for a few seconds until dissolved, then add the water to your tank including any tiny undissolved particles, which are safe.

Aim for about 6 dGH and 300 microsiemens conductivity, and confirm with a GH and KH test kit before adding livestock.

Brand: SaltyShrimp by GlasGarten, Model SSM-NSM-200, Form: fine powder, Size: 200g for up to 1,000 liters of prepared water.

Ratio: raises GH and KH at 1.0/0.5 for neutral pH water around 7, ideal for Neocaridina and neutral water shrimp.

Compatibility: for RO water, rainwater and fully desalinated water. Includes measuring spoon, store sealed in a dry place.

The API GH and KH Test Kit is a dedicated freshwater hardness test designed for aquarists who want stable, healthy water. It is ideal for beginners and experienced keepers of tropical community tanks, cichlids, goldfish and planted setups where mineral levels matter.

Its standout strength is dual testing for general hardness and carbonate hardness in one box. The drop count method gives clear, actionable readings that help you adjust water to match natural habitats and avoid dangerous pH swings linked to low KH.

In real world use, the kit is quick and economical for weekly checks or troubleshooting. You simply fill the test tube, add drops one at a time and watch for the color change, which makes it easier to track trends over time than test strips.

The build is simple and practical, with two solution bottles, two capped glass test tubes and easy instructions. While accurate, it requires careful counting, good lighting and thorough tube rinsing, and it covers hardness only so you will need other kits for a complete water profile.

Overall, this is a must have tool for any freshwater aquarist focused on prevention and stability. If you want healthier fish, stronger plants and fewer surprises, this compact kit delivers reliable insight with minimal effort.

This kit includes one GH test solution bottle, one KH test solution bottle, two capped test tubes and printed instructions. It is formulated for freshwater aquariums only and measures both general and carbonate hardness by drop count.

Size is 2.5 oz total with compact packaging for easy storage near your aquarium stand. The model is API General and Carbonate Hardness Kit 58 from Mars Fishcare.

For best results, use for weekly monitoring and whenever fish show stress, plants struggle or after water changes. Rinse tubes thoroughly between tests and store bottles tightly closed in a cool, dry place.

Test GH and KH weekly to monitor water quality and prevent stressful conditions for fish and plants. Regular testing helps you catch invisible mineral imbalances before they cause health issues.

Fill the provided test tube with aquarium water, add the test solution drop by drop while counting and shaking gently. Record the number of drops where the color changes completely, then compare to the included chart.

If KH reads low, take steps to stabilize buffering to avoid sudden pH shifts. If GH does not match your species needs, adjust gradually with appropriate water conditioning and retest to confirm stability.

Seachem Equilibrium 600g is a dry mineral supplement designed to rebuild general hardness in planted freshwater aquariums. It is made for hobbyists using RO, DI or very soft tap water that lacks calcium, magnesium and potassium.

Unlike many competitors that rely on sodium chloride, Equilibrium uses only calcium, magnesium and potassium salts. This approach raises GH and electrolytes for fish health while directly supporting strong plant growth and helping stabilize water chemistry.

The powder comes in a sturdy Seachem container with clear dosing directions for water changes and RO remineralization. It dissolves with mixing and pairs well with Seachem Alkaline Buffer when you also need to maintain KH.

It will not raise KH on its own, so you will need a separate buffer if your tank needs carbonate hardness. Dosing requires careful measuring, and tanks with already hard tap water may not need supplementation.

For planted tank keepers with mineral deficient source water, Equilibrium is a trusted, plant safe solution. It delivers clean GH restoration without unwanted sodium or chloride for balanced, thriving aquariums.

Brand: Seachem Laboratories, Inc. Model: 443. Size: 600g dry powder for freshwater planted aquariums.

Function: Aquarium water conditioner that raises general hardness and electrolytes. Formulated without sodium or chloride.

Best Use: Remineralizing RO, DI or soft mineral deficient water. Pair with Alkaline Buffer to maintain KH.

Target Species: Freshwater fish and aquatic plants. Category: Aquarium Water Treatments.

Use Equilibrium when preparing RO, DI or soft water for water changes to restore essential minerals. Measure the dose based on your target GH level.

Dissolve the powder fully before adding it to the aquarium for even distribution. Test GH regularly to dial in consistent results.

Combine with Seachem Alkaline Buffer if you also need to raise or stabilize carbonate hardness and pH.

SaltyShrimp Shrimp Mineral GH/KH+ 100g is a specialized remineralizer designed for Caridina shrimp keepers using RO, rainwater or fully desalinated water. It is built for bee shrimp, bumblebee shrimp, tiger shrimp and crystal shrimp that thrive in soft, low KH environments.

Its standout strength is precision mineral balance. It raises total hardness to around 6 dGH while keeping carbonate hardness near zero, so pH stays stable. Users report stronger molts, deeper coloration and more consistent breeding when dosed correctly.

The fine powder dissolves cleanly and comes in a compact 100g jar that stores easily and lasts through many water changes. Dosing is simple with one level spoon per 10 liters, which makes routine RO prep fast and repeatable.

It is not a universal conditioner, since tanks needing higher KH for Neocaridina or livebearers will need a different product. You will also need a GH test kit and pure source water to get the best results, as tap water can throw off the balance.

For dedicated Caridina breeders and softwater planted shrimp tanks, this is a top tier choice. It delivers stable water chemistry, healthier shrimp and a more resilient ecosystem with minimal effort.

Brand: SALTYSHRIMP by Salty Shrimp, Model SSM-NSM-100 for aquarium water treatment.

Form: Fine dissolving powder, 100g jar dosed at 2g per 10 liters for 6 dGH.

Use: Remineralize RO, rainwater or fully desalinated water for shrimp, snails, crayfish and softwater fish.

Add one level measuring spoon, about 2g, per 10 liters of RO or desalinated water to reach approximately 6 dGH.

Stir or aerate until fully dissolved, then test GH before adding to the aquarium for stable parameters.

Use with each water change and avoid mixing with tap water unless you monitor GH and KH closely.

SaltyShrimp Shrimp Mineral GH/KH+ 750g is a powdered remineralizer made to prepare neutral aquarium water for keeping and breeding shrimp. It is built for hobbyists who start with RO water, rainwater or fully desalinated water and need stable hardness levels.

Its standout feature is the balanced GH/KH ratio of 1.0/0.5, targeting about 6 GH and 300 uS conductance. In real world use, it dissolves in seconds and delivers essential minerals and trace elements that support color, molting, breeding and growth, while also helping plants and filter bacteria.

The product comes as a fine, fast dissolving powder in a large 750g container with an enclosed measuring spoon. Dosing is simple at about 2g per 10 liters, which makes routine water changes consistent and easy to repeat.

There are a few tradeoffs to note. It must be mixed outside the tank and any undissolved particles added with the water, which takes extra care. The salt is highly moisture sensitive, so you must reseal it right after every use to keep it free flowing.

For shrimp focused tanks with neutral pH needs, this is a reliable and economical choice. If you want stable minerals, strong color and successful breeding from purified source water, this formula is well worth using.

Brand: SALTYSHRIMP by Salty Shrimp, Model SSM-NSM-750. Item form is fast dissolving powder for freshwater shrimp aquariums.

Size: 750g powder, listed as 26.4 Ounce. Target species is shrimp, with pet type listed for small animal aquariums.

Purpose: Remineralizes RO water, rainwater and fully desalinated water for neutral pH keeping and breeding. Standard dose targets about 6 GH and 300 plus or minus 50 uS conductance.

Always mix Shrimp Mineral GH/KH+ outside the aquarium before water changes. Add an evenly full measuring spoon, about 2g, to 10 liters of RO, rainwater or desalinated water and stir briefly.

The powder dissolves almost completely within seconds and the water is ready to use at once. Be sure to add any remaining undissolved particles to the tank as well, since they contain minerals.

Close the container immediately after every use because the salt absorbs moisture from air. Store dry and dose carefully for nano tanks to maintain stable GH, KH and conductance.

Continuum Aquatics Reconstitute RO is a liquid mineral supplement designed to rebuild purified RO, distilled and deionized water for freshwater aquariums. It is built for hobbyists, breeders and discus keepers who want complete control over GH, KH and trace minerals without tap water contaminants.

The broad spectrum formula adds general hardness, alkalinity plus major, minor and trace elements in one step. In real world use, it creates stable, natural water that supports sensitive fish, invertebrates and live plants, and helps avoid phosphate spikes common in public water supplies.

The 16.9 oz liquid format is easy to measure and mixes quickly compared to powders, which is helpful for regular water changes. The bottle is compact for storage, dosing is straightforward, and the same line is also offered in powder form for larger systems.

As with any remineralizer, you will need a GH and KH test kit to dial in the right dose for your species. Heavy users with large tanks may find the liquid bottle runs out faster than bulk powder, and it is not a substitute for a tap water dechlorinator.

Overall, Reconstitute RO is a reliable, all in one solution for turning blank purified water into thriving freshwater habitat. If you keep discus, breed sensitive species or run RO/DI for plants and shrimp, it is a smart and convenient choice.

Brand: Continuum Aquatics, Model: QRRL500, Size: 16.9 fluid ounces (500ml) liquid formula for freshwater aquariums.

Function: Water conditioner that restores GH, KH and essential major, minor and trace minerals to RO, distilled and deionized water.

Suitable for: All life stages of freshwater fish, invertebrates and live plants, including discus, breeding and display systems.

Brightwell Aquatics Caridina GH+ is a liquid remineralizer made to rebuild RO, DI and extremely soft freshwater for Caridina shrimp and soft water biotope tanks. It is built for hobbyists keeping Bee shrimp, Crystal shrimp and tropical forest stream fish that need low TDS, stable GH and minimal KH.

Its standout strength is precision. It adds calcium, magnesium, potassium and sodium in shrimp friendly ratios to support molting, osmoregulation, muscle function and plant growth, while leaving KH and pH untouched. That makes water changes and new setups more predictable for sensitive livestock.

The liquid 500 ml format is simple to dose and mixes quickly, which is convenient for nano tanks and routine maintenance. As an American made Brightwell Aquatics formula, it reflects focused research on soft water river chemistry rather than a generic water hardener approach.

The main limitation is that it is intentionally GH only, with no carbonate buffering. If your setup needs KH, you will need a companion product such as Florin Delta KH+, and it is not the right choice for Neocaridina or hard water communities.

Overall, Caridina GH+ is an excellent choice for dedicated Caridina keepers using purified water who want natural, stable parameters. If you value controlled molting, consistent TDS and true soft water conditions, it is a reliable, purpose built solution.

Brand: Brightwell Aquatics

Model: CGH500, UPC 096647000022

Volume and Form: 500 ml liquid water conditioner

Use: Remineralizes RO, DI and very soft freshwater for GH and TDS without affecting KH or pH

Best For: Caridina Bee shrimp, soft water biotopes, and planted shrimp tanks with fish and shrimp

Choose Caridina GH+ if you use RO or DI water and keep Caridina shrimp that need low KH and controlled GH.

Pair it with a GH test kit and TDS meter for accurate dosing, and add a separate KH+ product only if your livestock needs buffering.

Skip it if you keep Neocaridina, African cichlids or livebearers, and consider a combined GH and KH remineralizer like NeoTiger KH and GH+ instead.