I am going to be including a frag tank in my new setup. I have 2 options for lighting. I can use my extra 175 Watt MH ballast to set up a light for the frag tank, or I can add it into my DT lighting as I haven't built the hood yet. That would put me with 3 175 MH, 1 6ft Actinic VHO, 1 6ft Super white VHO and 2 2ft actinic VHO's on the DT if I added it. If i added it into my DT lighting then I would have to figure something else out for my frag tank. I would rather not spend anymore money than I have to, but I want to do this right. PS the frag tank is going to be 30 gallons.