Ron
Fish Addict
I have an extra 10 gallon tank going through a cycle. It's with 4 goldfish. I have a biowheel mini filter filtering the water. I don't plan to put anything in it soon, probably just the goldfish. Anyways, I don't test that aquarium for any parameters. But my biowheel on my filter is starting to turn darker, and its also revolving around more slowly. Does this mean my tanks cycled when teh biowheel has turned kinda dark? Just curiuos. Thanks!
Ron
Ron
