I restarted my sons tank, 28g, UGF, Fluval 204 with Bio-ChemZorb and
Bio Media, about 3 months ago. I let it run for about 1 month and
then added 5 White Clouds. 1 Cloud dissapeared and 1 other died, was
found and has since been removed. I've so far done 2 water changes.
1st water change was...