G-Lizard
Aquarium Advice Apprentice
Recently added two cory Adolfoi to my tank. After four days, I found one of the fish dead when I went to do the morning feed. The other one died after 10 days, again, found at the morning feed. There were no signs of either fish falling ill, and all the other fish in the tank seem healthy. Water tests are fine (no Ammonia present and ph is as it always has been, about 7.6). The other fish are 10 wild green tetras, 1 bulldog Pleco, 6 harlequin Rasboras, 2 Apistogramma agassizii, and 5 Amano shrimps. The only thing I noticed with the dead fish was with the second death, the fish had a few red lines half way down his body. Should I be treating my tank with something like an anti internal bacteria solution if the other fish are all behaving normally. I am currently doing a 20% water change of my 70 litre tank every 10-14 days.