I have a 10 gallon tank that has been running since February 2020. We started out with 2 Leopard Guppy males. They have been our sole inhabitants for all this time. I am diligent with water testing and changes. All levels are standard and the tank has been very healthy. Temp and chemistry...

hi everyone! my name's henri & I run the aquatics department at a local big-box pet store. when I was put in charge of the department, the tanks were a hot mess. we only sell FW (thank the lord), but we had african cichlids with new world-ers, tetras with mollies, etc etc. anyway I spent a...