If you want a tang go with the 85. A bristletooth would be ok in the 85.So changing more water sounds like more maintenance to me. Or will I have to do fewer water changes in general because the tank will be more stable?
The 55 gallon is 24x24x24. The 85 is 36x24x24. I'm guessing that with the 85, I will need 2 kessils instead of the 1 I was going to get with the 55. Or could I get a 2 ft led light? I'm not sure about water flow, but I'd imagine I'd need more powerheads too.