I recently set up a loach tank and moved all my loached to the 55. The ammonia, nitrite and nitrate stayed 0 and pH was the same. The temp was the same at the time of the move but i later moved it from 78-82*. All the driftwood, plastic plants and bamboo hideouts came from the 150 that they were previously in. The only thing they got new was the tahitian moon sand, javamoss and some amazon sword. All these new things were in with the black rhom before. Ive tested the water over and over and ive lost 4 Clowns in 2 weeks. These clowns were 3-4" and have been doing fine for months before the move. At the time of the move all my clowns broke out in ich but ive treated it before, no problems. Ive never lost a fish to ich. This time is different, they got it reall bad and its not getting any better. They also darkened up really good and are not eating as well. They dead ones looked like the got the skinny disease and died. I dont know what to do other than move them back. Im guessing there's something in the tank that's bothering them. The moss ball has a lead weight and ive noticed that the Tahitian moon sand is attracted to the Mag-Float. could they be leaching heavy metals? That is my only guess unless someone used some chemical long ago in the tank and its leaching out. Any suggestions?
Heres that i've got:
55g tank with glass lids
350 marineland biowheel
250w marineland stealth heater
2 powerheads (chinese knockoffs)
Magfloat
2 pcs mopani driftwood
2 pcs petco DW on slate
2 plastic plants
2pcs of cut bamboo
some fists sized river rock
live amazon sword
Petco java moss ball
marimo ball
FISH:
Now 5 CL
3 yoyo
1 boarder loach
1 madtom catfish
1 peacock eel

Heres that i've got:
55g tank with glass lids
350 marineland biowheel
250w marineland stealth heater
2 powerheads (chinese knockoffs)
Magfloat
2 pcs mopani driftwood
2 pcs petco DW on slate
2 plastic plants
2pcs of cut bamboo
some fists sized river rock
live amazon sword
Petco java moss ball
marimo ball
FISH:
Now 5 CL
3 yoyo
1 boarder loach
1 madtom catfish
1 peacock eel
