Quote:
Originally posted by rommelgin
Agree, Halides will usually require use of a chiller or a fan in the sump to keep tank from over heating so T5's would be the next alternative.
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Fans will be necessary but a chiller isn't. I have 2x250w MH and 2x110w VHO on my 150g and don't use a chiller. I have a closed canopy so fans are a must.