when all is running I get a temp of 83 without the heater on.... I turned the pump off today and it went down to 79 I am worried the the 83 is too high.. can someone confirm to me that 83 is OK... or should I check into a chiller... 75 gallon tank..... I am going to put a fan on the sump as suggested... see if that lowers the temp.... at this point am I worrying too much?