Aquarium Calculator

Why do most aquarists use salt? This is because their tap water lack enough minerals (i.e., it’s too soft) or they used a reverse osmosis … Read more

The idea behind mixing tap and reverse osmosis water are as much about expectation management as it is about understanding chemistry. Tap water has what … Read more

Water mixing sounds easy enough but it’s actualy doing some chemistry in a bucket. You’ve got hard tap coming in and soft reverse osmosis going … Read more

Water testing for total dissolved solids will indicate mass of minerals present in the water. It has nothing to do with biological quality of that … Read more

Every day, some amount of water will evaporate from surface of your tank. That water contain dissolved minerals which remain in tank after evaporation. As … Read more

Want proof? Without touching a single fish, you can make a clear tank go cloudy. On Monday, it look great. On Thursday, your test kit … Read more

Remember how it goes. You’ve got that planted tank looking lush, so then you look at your fish hanging out near the surface of the … Read more

Sure, you check your water in your tank because you care about the safety of it for your fish. You don’t do it because you … Read more

Your heart relaxes when you read a clean zero from the test kit. You feed the fish, but one of them die with no apparent … Read more