12-01-2010, 01:08 PM
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Originally Posted by northlakefarm
Agreed, low oxygen and colder temps can make fish lethargic. Can also lower their immune systems to where it cant fight off things it normally would. I keep my tank at a firm 79 and it makes a HUGE difference. I also keep plants in there to keep my water quality and oxygen up.
yes, an air stone wouldn't make enough oxygen dissolve into the water fast enough. Water changes to bring in more oxygen, and plants to take up the bad and give out the good cant hurt.
The ich could still be there, on the lungs of your fish, making it harder for them to breath.