Im lucky the petsmart near me has the best feeders in town , never had a problem with them . and as a plus my wife works there so she hand picks them for me 
bOOsteN aUdI;2314052; said:keep your water at 87 and there won't be any problems
Imo, the best way you can avoid something like that is to breed your own feeders, also economically better for you. Then you can also gut load the feeders to make them more nutritionally complete.itsbadlands;2315150; said:okay,let me ask anyone here-how do you know you have never had a problem?diseases such as hole in the head or fin/tail rot take time to show themselves and usually when it does you have a very slim chance of saving it from killing the fish.All I am saying is be careful and set up a feeder tank even if its 2.5 gallons and let them get healthy-treat em even and make sure they dont kill your pride and joy(s).After months/years of growing a monster it isnt worth losing it with something that costs next to nothing(feeders)
