Over the last 4 days I have had my three platys die. The first death occurred after one had been acting "strange" for a week-pouting around the bottom and keeping his fins slicked back. I treated him with salt and separated him but there were no marks on his body. I eventually just released him back into the tank and the next morning he was dead. The following day I found his "best friend" (another male platy) dead and the female platy hiding. Yesterday I did a VERY thourough cleaning of the tank and checked all the water levels (all fine). The female platy seemed much happier. This morning I found her dead.
None of the dead platys have had any marks on their bodies or any signs of disease or parasites. They were all eating fine and acting normally (other than the first one) as of the night before. I have no platies remaining in the tank, but my other fish (guppies and gouramis) are all acting and look completely fine. All of the platies have been in the tank for about 4 months, but were bought from different original tanks. My tank has slightly hard and alk. water, but the levels have been constant since the fish were introduced.
Any ideas on what happened? Should I/Can I do anything to protect the remaining fish?
None of the dead platys have had any marks on their bodies or any signs of disease or parasites. They were all eating fine and acting normally (other than the first one) as of the night before. I have no platies remaining in the tank, but my other fish (guppies and gouramis) are all acting and look completely fine. All of the platies have been in the tank for about 4 months, but were bought from different original tanks. My tank has slightly hard and alk. water, but the levels have been constant since the fish were introduced.
Any ideas on what happened? Should I/Can I do anything to protect the remaining fish?
