Does anyone have any suggestions on purchasing a chiller at a low price? It would be for a 90 gallon corner aquarium. Also, if anyone has suggestions on how to go about setting one up. Right now I have a wet/dry filter with only one sump. In that sump are 2 pumps for the skimmer and return back into the tank. Really not much room to add a pump for a chiller. I really hate to purchase a new filter. thanks in advance for the advice.......