Hi,
A while ago I lost 2 male convicts because of a disease I don't know. Just bought 2 females for them, so after the males died I bought 2 new males.
1 of the males is already having the same disease that the other 2 had.
The fish are in a 190 gallon / 720 liter tank. Ammonia and nitrite are 0. Nitrate is 10-15, PH +-7,5, used a testkit from Sera. Didn't test GH and KH.
Temperature is about 27-28 celsius / 80-82 fahrenheit.
The tank is running for 1,5 year and properly cycled, the old 2 males where in the tank since the start. I have 2 Eheim Professional 3 2080 running, and change about 50% every 5-7 days.
Other tankmates are 2 Green Terrors, 2 Jack Dempseys, Vieja Maculicauda, 2 Flyer cichlids (Archocentrus Centrarchus) and Amphilophus Amarillo. None of the tankmates were stressing the cons (not even the Amarillo).
Didn't add any new tankmates, only 2 new male cons after the others died.
I feed twice a day, Hikari Cichlid Gold and frozen foods (Bloodworms, Krill).
The weird thing is it only seem to effect my convicts. And it came out of nowwhere. One day they were acting normal and the other they were hanging down and not eating. Couple days later they died. I give this new male 3 days max. before he is dead as well if I don't figure out what this is. Symptons are not eating and hanging in the corner of the tank. The scales seem to be rotting away, in just a couple of days.
With one of the males I used salt and a medicine that had a wide range of disease would cure.
On the second male I used a a medicine for the bacterial infections. Both of the methods didn't work. Not even a bit.
Hope you guys have enough info and know what it is? I added some pics as well (water was green because of the medicine). Thx in advance.
