Hi
I got 5x 2" Clown loaches about 3 weeks ago; within 48 hrs one of them died with a very sharp red bruise under his eye. He segregated from the group, breathing very heavily and quickly passed.
Everyhing went smoothly and the clowns had been acting healthily, until 2 days ago another loach is looking bruised and segregated from the group... his eyes look a bit bulged and his whole mouth area is red. He is breathing a bit rapidly and doesnt swim around that much, but at least moves around a bit. The remaining 3 clown loaches are very healthy and swim around actively. They all go to sleep at 9:00PM on a couple of Anubias leaves that slightly press against the glass; except for the bruised fella, he sleeps by himself around the back of the tank under some plants.
I have often seem them quarreling since the beggining in typical Clown loach style: faded colours, showing eachother off, lip locking, head-butting. It still happens, but i cant tell which were the ones doing the fighting.
Conditions: 50 Gal, heavily planted (low light, no CO2), 2x Aquaclear filters, aquarium gravel and pool filter sand as substrate, with some rock caves.
ammonia/
nitrite 0,
pH 8.0, KH 8 dH,
GH 14 dH, temp 84F. Don't have a Nitrates tester on my kit...
Tankmates: 2x 3" Angelfish, 6x Glo Danios, 1x 4" Common Pleco, 1x 2.5"
CAE.
Fish and plants look and behave healthily...
Thanks everyone in advance...