dudeofrude
Aquarium Advice Addict
I recently bought a new filter for my tank, its rated for twice my tanks size and has an hourly output of nearly 5times my tanks capacity yet I still seem to have a lot of bioload settling on the floor of my tank. I have a spray bar fitted and I can see the water current in the top part of the tank but the bottom seems very still? I'm just wondering if there's any kind of dye I can safely add to the water to check the current/movement??