Hey guys, basically my money pit is starting to run out because I only got this casual job atm. So I have to put my purchases in order. I will be getting a chiller but I may not be able to get it when I start up a new tank (have a 37L atm). Anyhow, because of this do you really need a chiller to help run the 250? And unfortunately Perth temps in summer can get up to 40 degrees.