They are very sensitive to bloat while young, 1/2" to approx. 4". I believe it is stress, and that could be from being kept in a community. I went through 20 fry to get a female, and ended up buying an adult male. They spawned many times.
They are also very sensitive to cool, and like temps in the 80s. After a heater failure they both got ich and the female died.
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Lots of water changes, and a stress free tank would be the ticket.
so at what size would you say they become hardy and less prone to ich?
Haits seem to be in the clear from bloat around 4.5-5" and up, that doesnt mean they can't bloat past that but it's unlikely. And these fish do best in a pair tank or solo not in a community unless they are the most dominant. And no fish is prone to ick, just keep your temps above 80 and keep salt on hand and you won't have to worry about ick unless you have just introduced a new fish to the tank without quarentining first
Haits seem to be in the clear from bloat around 4.5-5" and up, that doesnt mean they can't bloat past that but it's unlikely. And these fish do best in a pair tank or solo not in a community unless they are the most dominant. And no fish is prone to ick, just keep your temps above 80 and keep salt on hand and you won't have to worry about ick unless you have just introduced a new fish to the tank without quarentining first