"Altum" wrote in news:1138826741.423702.265590
@o13g2000cwo.googlegroups.com:

Ever since I've been providing newly imported clown loaches with large
well constructed caves I've seen our ich infection rates drop to zero.

Now THAT is valuable information. How large relative to the loach and
how do you suggest constructing them? Should the entrance be similar
to the size of the fish or are larger openings OK?

The more loaches that can fit in the cave the better. The most important
point seems to be keeping the cave relatively dark. The entrance can be
very large, so long as it isn't allowing a lot of light inside. Slate rock
works very well. I try to assemble things so that the cave entrances are
large but low lying.