Freshwater Hardnss Test Kit
$11.98
Price: $11.98
(as of Oct 12, 2025 12:14:11 UTC – Details)
Miscellaneous Aquariam Testing Solution, Test Tubes With Caps, Computer Analyzed Laminated Color Card To Read Results.Tests Tap Water And Freshwater Aquariums For General Hardness (gh) And Carbonate Hardness (kh).Helps Detect Stress On Fish Caused By Rapid Ph Shifts, Which Result From Low Kh Levels And Helps Aquarists Duplicate The Nat.
Is Discontinued By Manufacturer : No
Product Dimensions : 4 x 2 x 4 inches; 4.66 ounces
Item model number : Freshwater Hardnss Test Kit
Date First Available : July 24, 2008
Manufacturer : Mars Fishcare North Amer
ASIN : B007TUBOSG
Best Sellers Rank: #41,401 in Pet Supplies (See Top 100 in Pet Supplies) #53 in Aquarium Test Kits
Customer Reviews: 4.4 4.4 out of 5 stars 297 ratings var dpAcrHasRegisteredArcLinkClickAction; P.when(‘A’, ‘ready’).execute(function(A) { if (dpAcrHasRegisteredArcLinkClickAction !== true) { dpAcrHasRegisteredArcLinkClickAction = true; A.declarative( ‘acrLink-click-metrics’, ‘click’, { “allowLinkDefault”: true }, function (event) { if (window.ue) { ue.count(“acrLinkClickCount”, (ue.count(“acrLinkClickCount”) || 0) + 1); } } ); } }); P.when(‘A’, ‘cf’).execute(function(A) { A.declarative(‘acrStarsLink-click-metrics’, ‘click’, { “allowLinkDefault” : true }, function(event){ if(window.ue) { ue.count(“acrStarsLinkWithPopoverClickCount”, (ue.count(“acrStarsLinkWithPopoverClickCount”) || 0) + 1); } }); });
Miscellaneous Aquariam Testing Solution, Test Tubes With Caps, Computer Analyzed Laminated Color Card To Read Results.Tests Tap Water And Freshwater Aquariums For General Hardness (gh) And Carbonate Hardness (kh).Helps Detect Stress On Fish Caused By Rapid Ph Shifts, Which Result From Low Kh Levels And Helps Aquarists Duplicate The Nat.
Customers say
Customers find the water hardness test kit accurate, with one noting it measures both GH and KH precisely. The instructions receive mixed feedback – while some find them excellent and informative, others find them confusing. The product is easy to use and customers consider it good value for money. However, color accuracy is a concern as no color guide is included.
Frank –
Easy and Accurate!
It’s very easy to use (for espresso) much more accurate than a conductive TDS estimate.
Emmanuel –
Works
Works fine, nothing showed up broken or anything. KH test works perfectly but my GH test is iffy meaning my water might be too hard/soft for it to register or there might be something wrong with the GH test, not 100% sure. Anyway yeah besides GH it works fine. Also donât listen to the other reviews they literally donât know how to read instructions. You donât need a color chart or anything. READ THE INSTRUCTIONS!!!!
erik –
Producto adecuado para las mediciones de agua que requeriamos
llego a tiempo segun estaba programado y lo hemos utilizada varias veces
Amazon Customer –
Easy to use
Excellent informative instructions included. A must if you have soft water.
DenverDad81 –
Most likely accurate although Instructions separated from product.
Instructions should be printed on bottle in layman’s terms. Most of the information on the instruction pamphlet is useless. If any of the information had a chance of being slightly useful it is vague at best! 3 stars because it seems to be accurate and is cost effective. Test tubes are also extremely fragile.
GadgetNut47 –
It did what I needed it to
I bought this as a inexpensive way to test my water for homebrewing, so all I needed was the the number of drops for the GH and KH tests. The included instructions did have a chart that converted the number of drops (there is no color chart needed) into a meaningful scale for aquarium use; being that I was using this “off-label”, I can’t speak to how useful it is.One thing to note is the included vials are easy to break, I accidentally shattered one when I squeezed a bit too hard trying to get the cap off (thankfully, it didn’t cut me).
Danielle Ash –
Works well
I would give a better review except the instructions was very confusing. After doing some research on YouTube I finally figured it out and it was much easier to use
B Grover –
No color guide included
Well, this is a great brand, but delivered without the color card so I have no idea what the results mean.**update** well, if I would have read the directions I would see that I do not need a color chart. You count how many drops you use for it to change to the desired color. 5 stars!