I have a divided 10 gallon tank and I do a 50 % water change each week. For this change, I shouldn't have to acclimate the bettas to the new water should I? I just syphon the water out with them in the tank, and then add the new water.
For the water temp, I'd like to know if people keep their heaters on during the summer. My tank stays between 78 and 82 degrees. It might warm up a bit during the 2-4 hours that the tank light is on though.
About my filter... WHen I do a water change, I unplug the filter (HOB that came with the 10 gallon) and then plug it back in after the tank is full again. Lately, it has not been coming on right away. Sometimes I can flip the power cord switch a few times, and it comes on. Does this mean that the filter is going out? The only other filter I have available is a tetra whisper 2-10i power filter.