Aquarium GH and KH: Test Strips and Mineral Products Compared
As an Amazon Associate, this site earns from qualifying purchases. Listing figures below were checked between 2026-10-13 and 2026-10-16, and each product entry gives its own date.
General hardness (GH) and carbonate hardness (KH) decide how stable and how mineral-rich the water is, and they matter most for shrimp and for tanks filled with purified water. This guide covers six listings that name GH or KH: three test strips and three mineral products. The listings do not all use the same labels, so each entry shows the exact wording the listing uses, with the figures it states.
Some listings print both GH and KH, others print total hardness or carbonate hardness, and the mineral products state what they add rather than what a tank reads. Where a listing contradicts itself, both figures appear side by side instead of one being chosen.
Quick answer
For a single strip that names both GH and KH, the Droplytix and Veiraln listings state both. The AESCULIX listing states total hardness and carbonate KH on the same strip. For adding minerals to purified water, the two Brightwell NeoTiger listings and the AquaBoost listing each say they raise GH and KH. The Brightwell products are liquids and the AquaBoost product is a powder with a scoop.
Comparison table
The table lists only what each listing states. “Not stated” means the listing gives no figure for that item.
| Listing | Type | GH and KH wording | Count, volume or weight | Target listed |
|---|---|---|---|---|
| Droplytix App-Enabled 10-in-1 Kit | Test strips with app | GH and KH named in bullets | 10 Count | Freshwater, saltwater and reef tanks |
| AESCULIX 9-in-1 Test Strips, 100 Count | Test strips | Total hardness and carbonate/KH | 100 in title; 123 Count in unit field | Freshwater and saltwater aquariums |
| Veiraln 7-in-1 Test Strips, 100 Count | Test strips | GH hardness and KH carbonate hardness | 100 Count | Freshwater, saltwater and ponds |
| Brightwell NeoTiger KH GH+ Mineral, 500 ml | Liquid mineral | Raises GH and KH | 500 ml; 0.5 kg | Fish and shrimp |
| Brightwell NeoTiger KH GH+ Mineral, 2L | Liquid mineral | Raises GH and KH | 2 liters; 4.7 pounds | Fish (listing field) |
| AquaBoost Shrimp Mineral GH/KH+ Remineralizer | Powder mineral | Raises GH and KH together | 3 Ounce; 3 ounces | Shrimp |
Droplytix App-Enabled 10-in-1 Digital Aquarium Water Test Kit
The bullets name ammonia, nitrate, nitrite, pH, GH, KH and chlorine among the parameters the app reads. The listing states a pH range of 6.0-8.0 and a unit count of 10. The included components are listed as a mobile app and test strips. The bullets say the kit fits freshwater and saltwater tanks of 5, 10, 20 and 30 gallons, and describe it as a replacement for drops and manual color charts. The listing gives no read time and does not name the phone platform for the app. Checked 2026-10-13.
View the Droplytix listing on Amazon
AESCULIX 9-in-1 Aquarium Test Strips, 100 Count
The bullets name nine parameters: pH, nitrate, nitrite, carbonate hardness, total alkalinity, total hardness, free chlorine, copper and phosphate. The listing labels the hardness reading total hardness, not GH, and it labels the carbonate reading as carbonate hardness. The title says 100 count while the unit count field reads 123 Count, so confirm the count before ordering. The listing says to dip the strip for 2 seconds and wait about 30 seconds before comparing. It also says the bottle has a desiccant and should be stored capped in a cool, dry place. Checked 2026-10-13.
View the AESCULIX listing on Amazon
Veiraln 7-in-1 Aquarium Test Strips, 100 Count
The bullets list seven parameters: pH, nitrate, nitrite, total and free chlorine, GH hardness and KH carbonate hardness. This is the only strip in the group whose bullet uses both GH and KH by those exact names. The listing calls the read a 30-second result, says to hold the strip horizontally and compare the color pads with the chart. The included components field reads 100 test strips, and the item weighs 1.92 ounces. It gives no pH range. Checked 2026-10-16.
View the Veiraln listing on Amazon
Brightwell Aquatics NeoTiger KH GH+ Mineral for RO/DI Aquariums, 500 ml
This is a liquid mineral that the listing says raises GH and KH from purified water sources, and it is formulated for Neo Caridina and Tiger shrimp. The bullets say it replenishes calcium, magnesium, potassium and sodium and adds silica for root strength in planted tanks. The listing says each milliliter raises GH and KH predictably. The liquid volume is 500 ml and the item weight is 0.5 kg, and the package measures 2.17 x 2.17 x 5.51 inches. The target species field reads Fish and Shrimp. Checked 2026-10-16.
View the 500 ml Brightwell listing on Amazon
Brightwell Aquatics NeoTiger KH GH+ Mineral for RO/DI Aquariums, 2L
The bullets match the 500 ml listing word for word, so the mineral profile and the dosing statement are the same. The difference is the size: the liquid volume is 2 liters and the item weight is 4.7 pounds, with a package of 9.45 x 6.93 x 2.83 inches. The target species field reads Fish only, while the 500 ml listing reads Fish and Shrimp. The bullets still name shrimp as the target, so the two fields conflict. Checked 2026-10-16.
View the 2L Brightwell listing on Amazon
AquaBoost Shrimp Mineral GH/KH+ Remineralizer
This is a powder that the listing says adds calcium, magnesium and potassium bicarbonate, so it raises GH and carbonate hardness in one scoop. The listing names Neocaridina, Caridina, cherry and bee shrimp as the target and says it suits RO, DI and distilled water. The bullets give a dose of roughly 2cc, one level scoop, per 5 gallons. The item weighs 3 ounces, the package measures 4 x 2 x 2 inches, and the kit includes a spoon and a resealable jar. Checked 2026-10-16.
View the AquaBoost listing on Amazon
How we chose these six listings
Each listing had to name GH or KH in its title, its bullets or its specification fields. Three strips and three mineral products passed that test. All six came from the research file for this keyword, and no other listing was added or used.
Each entry was then compared on the figures that change how the product is used: the wording of the GH and KH claim, the count or volume, the target species, and the read time for strips. Price and star ratings are not part of this page.
Worked example: scaling the AquaBoost dose and the Brightwell volumes
The AquaBoost bullets give a ratio of roughly 2cc per 5 gallons of purified water. Applied to a 10-gallon tank, that ratio gives about 4cc. Applied to a 20-gallon tank, it gives about 8cc. These are the listing’s own ratio applied to a larger volume, not a dosing instruction from the listing, so follow the label on the product itself.
The Brightwell listings give the same mineral profile in two sizes. The 2 liter bottle holds four times the 500 ml volume the smaller listing states, and its item weight is 4.7 pounds against 0.5 kg for the smaller one. Both bullets say each milliliter raises GH and KH, so the larger bottle covers four times as much dosing before a refill.
What the listings do not say
No strip in this group states a GH or KH result range. The Droplytix, AESCULIX and Veiraln listings name the parameters but give no numeric target for either hardness reading. A reader who needs a target number will have to find it outside these listings.
The mineral listings state that they raise GH and KH, but none states the starting GH or KH of the water they are meant for, and none gives a before and after figure. The AquaBoost and Brightwell bullets also say the products suit purified water, so they do not describe a result from tap water.
The test listings also differ on count. The AESCULIX title says 100 while its unit count field says 123, and the Droplytix count is listed as 10 rather than a strip total. The page shows these figures as they appear and does not pick one.
Frequently asked questions
Which listings name both GH and KH?
The Droplytix and Veiraln listings name both GH and KH by those exact words. The AESCULIX listing names total hardness and carbonate KH instead.
Do the Brightwell listings differ in their mineral profile?
The bullets are identical in both sizes. They differ in volume, item weight and the target species field, which reads Fish and Shrimp for the 500 ml bottle and Fish for the 2 liter bottle.
How much AquaBoost would a 10-gallon tank take?
The listing gives a ratio of roughly 2cc per 5 gallons of purified water, which scales to about 4cc for 10 gallons. The listing does not give a dose for tap water.
Can a strip show GH and KH on the same test?
Yes, for the three strips in this guide that name both readings. The reading method differs, since the Droplytix kit is read by app and the AESCULIX and Veiraln strips are read against a color chart, so check the method on the listing before you buy.
Are these products for shrimp only?
No. The Brightwell 2 liter listing names Fish as its target, and the strips name freshwater and saltwater tanks. The AquaBoost product names shrimp as its only target.
Conclusion
For one test that names both GH and KH, the Droplytix and Veiraln listings are the ones to check first. For a strip that gives total hardness and carbonate KH with a count of 100 in the title, the AESCULIX listing states both. For adding GH and KH to purified water, the Brightwell listings suit a liquid dose and the AquaBoost listing suits a powder with a scoop. Read each listing’s own wording before you choose, because the labels differ.
Amazon links
- Droplytix App-Enabled 10-in-1 Digital Test Kit
- AESCULIX 9-in-1 Aquarium Test Strips
- Veiraln 7-in-1 Aquarium Test Strips
- Brightwell NeoTiger KH GH+ Mineral, 500 ml
- Brightwell NeoTiger KH GH+ Mineral, 2L
- AquaBoost Shrimp Mineral GH/KH+ Remineralizer
