Originally Posted by canada

I just cleaned it with water and a new clean sponge and a credit card to scrape the algae.

The rocks were cleaned before too, but had been in the bag for quite a while. Maybe a little over a year.

Its a 3 stage filter and I cleaned the whole thing and replaced all 3 stages at once too. Maybe I killed all the bacteria too fast or something





My fish and turtle are swimming like they are on crack. I think I dropped some in the water too. They go back and forth in the tank and the fish digs in the rocks alot...