It's starting to get pretty hot here in Michigan and my 29 gallon has been getting up to about 82-84 degrees the last couple of days. Right now, I have cories, dwarf gouramis, black skirt tetras, and a common pleco. Based on the profiles on www.liveaquaria.com
, most of the fish have an upper limit of 82 (they have the cories at 79). My question is, is intervention needed at this point, or is this just part of nature and the fish will be OK? Searching here I found some suggestions of taking off the lid and blowing a fan on the surface of the water--do I have to worry about jumpers at all? There were some suggestions of using cool water or ice in the tank, but most people were saying that it would cause too much of a change too quickly. The filter is a penguin 330--should I be running an airstone at this point to keep oxygen levels sufficient. I haven't noticed the fish behaving any differently so far (spending time at the top, that is).
Thanks in advance.