Does this mean decay is dangerous? Too old leaves, and lots of roots, and not enough water changes, allows accumulation of something that makes the fish react with spots? (I though blackwater conditions, including the presence of humic substances, inhibited bacteria and decay which apparently causes the black spots.)
I have lots of live food animals probably scavenging everything, maybe that reduces rotting items a little, or is it not a matter of rotting and just too much dissolved organic matter accumulating on its own that causes problems?
How common is this problem in blackwater tanks?
The
PAROSPHROMENUS PROJECT
