all my fish died a month ago so i did 2 waterchanges and let the water sit for a month and then added 3 cromis and the other 2 cromises have cuts on there tails in the same place. im guessing my water is contaminated and i will start from new. any ideas what is causing the cuts?
idk imo i wouldnt start with chromis, they are hardy once they are 100 % acclimated, but they are also delicate. and the disease they can carry can be very hard to get rid of.