Hi. I'm new to the aquarist world but so far I'm madly in love with my little guys. But being new I sure could use some mentoring. I have 9 bullheads and have had them for 3months now and they have already doubled in size. My issue is I'm really not sure what I'm doing. I change water regularly and normally keep it at about 86º but this last couple week they seem to be itchy but no signs of ich although there was no signs I still treated them. But nothing Seems to be working and from my research I found most products to be harmful to shameless fish and I so madly in love with my little guys I'd hate for anything bad happen to them. But they look so miserably itchy. Did more research and trying to do a salt bath and I slowly Raised the tempature over a few days to what is now reading 90º but I don't know if im doing anything right. Plz help

