When I do a water change on my 10 gallon tank, my Otocinclus dart around
like crazy fish for the next day or two whenever I approach the tank.
The guppies act perfectly normally. The pH of my tap and tank water are
close and I match temps as well. My tap water contains chloramine. I
was treating with AmQuel but tried switching to Tetra's AquaSafe
wondering if the problem could be heavy metals. It made no difference.

It only happens in one of my three tanks, but all three get the same 50%
water change, same amount of water conditioner and have the same species
of Otocinclus bought at the same time. One unaffected tank has carbon
in the filter, but the other doesn't. Anyone got any ideas, or is this
nothing to worry about?

--
Elaine T __
http://eethomp.com/fish.html '__
rec.aquaria.* FAQ http://faq.thekrib.com