My 10gallon long tank is constantly in the 24-26C range. I live in a tropical country and it stays pretty hot and humid all year round (generally 23-30C air temp, as high as 35C at worst I think). It's rare to see hobbyists using any heaters here unless for demanding fish/fry that specifically require them. The thing is, my tank houses RCS and CPD, the latter of which prefers cooler water (and my tank temp range is at the highest end of what seem to be acceptable for them). Any tips on what can be done? They seem to be doing great tbh but then some people say the higher temperature will accelerate their metabolism and significantly shorten their lifespan.