FishEggs
Aquarium Advice Addict
Do these tests go bad? API drop tests.
I have an old test (maybe 6years old) and when i try to test my water it wont change color. Do i have super hard water or bad test drops?
I have an old test (maybe 6years old) and when i try to test my water it wont change color. Do i have super hard water or bad test drops?