I've been saying that for a long time now. None of my show tanks are heated.
It's very likely - You're a lot farther south than I. Though if you keep certain species like discus, GBRs, clown loaches, and other warm water fish, you'll want to keep the heater.Think I could get away with it in FL?
I've been thinking about this a lot lately, if living in the exact same temperature all the time has an adverse affect.
Most barbs are cooler water fish.I had my tank down to 71F a month ago due to some fluky issue. When I went to feed the fish at the usual lights on time, they ignored the food and seemed huddled in the bottom. They didn't get active and swimming about until the heat came back up a few degrees. I usually keep it at 78F. I wouldn't expect 7 degrees to have made that much difference with barbs.
Often our ambient room is 65F in winter. I don't think I could pull that off.
Odd. I went looking at all the barbs as I didn't recall them being cooler water fish... but my method of elimination was pretty cut throat while coming up with the "fish we can keep" list. The cherry barb is the warmest one listed here as between 74 and 81F. The coldest one was a low of 59F and preferred fast water. Most are topped out in the mid to upper 70's. Even our catfish are among the warmest listed catfish listed as 71 to 82F.Most barbs are cooler water fish.
But if I recall correctly your tank loses heat at an extraordinary rate ;-) so maybe that's why they were acting like that.
Yes, ich often shows up after the fish has been chilled. Or stressed in any other way, for that matter. However, it only shows up because it was already there. Ich can exist as a low level infestation, hidden in the gills, for a very long time - that's how it can just appear one day out of no where. Some people think that it's "always there", but in my experience that is not the case and the experiments I've read on the matter indicate that it is not the case either. Once it's gone it's gone.One of the things about running cooler freshwater tanks is that it ups the likelihood of dealing with something like whitespot (ich). If you have sensitive fish the cooler waters can be asking for trouble.
This is pretty much the situation referred to in the linked article. One has to always keep things in context.Our ambient room temperature in the winter is about 75, and during the summer between 79-82. I'm actually afraid of the tank getting too hot in the summer.
As an experiment I've removed the heater, and I'm going to see what the tank settles at, at different times of the day, and if the fish act any different.