Hello, I have three tanks. My smallest (5 gallon) just had my betta die. This betta has been sick on and off since I got it about 4 months ago. It was a really white one. He started with fin rot and things got worse from there. I tried different treatments along the way but I don't think he was ever really healthy.
He ended up dying with a red spot on the top of his head and then in the days before he died, he got two more red spots on his side. Not like open gaping wounds- just discoloration.
He was living with a small snail that was only with us a few weeks that died too. We also had an otto in there that we had only had for a week.
Tank water was just tested a few days ago and all my numbers were good in there. The tank is filtered and has a heater although we don't need it anymore since it is summer and stays 78-80 in there.
My questions are this...
Do I need to clean out the entire tank now and restart? I don't know what exactly the betta had and if it was contagious. I am thinking I need to clean every thing and start over.
Do I leave the otto in there? I don't want to move him to another tank if he has been contaminated by the betta and snail but if I need to redo all the water, will he survive the cycling?
I don't know that happened with the snail. It never moved around much from the time we got it.
Thanks in advance for helping with this!