90 Gal reef and 50 gal predator tank builds

[GreenSpottedPuffer]

Looks good so far. You mentioned not wanting MH because of heat and not wanting a chiller. Many people use MH without a chiller with no problems. Fans if used right work wonders. I have used MH for years and never needed a chiller. Even now I am running 800 watts of MH over a 95G tank and can keep the temperature right between 79-80. I would recommend a controller though if you use MH with fans, so you can have them turn on and off as needed.

Glad to see your getting off to such a good start in this hobby!

Whats going in the aggressive tank?