I put a digital thermometer in my 120gallon with my 2arowanas, oscar, lima,2 bichirs, and my 2 royal plecos and i dident notice how high my water temp was untill now. I was just curious what a good water temp should be for these fish.
Yea, that should be ok. Just make sure it well oxygenated and keep in mind that it will increase metabolism, meaning you may need to do more water changes
as long as they are introduced to the warmth slowly they should be alright. Just rember if your are going to cool the water dont let it drop more then 2 degrees an hour.
W-E-D-N-E-S-D-A-Y and Sunday changes is a good schedule. When you're lowering the tanks temp, do so by no more than 2 degrees a day. A sudden drop will tax the fish's immune systems and leave them vulnerable to diseases like ich.