buster

Hi, I am quite new to this and in designing my light canopy i would like to know if someone can tell me if I put 3 150w MH 10000k in with 2 VHO 20000k arctanic blues will it do for a 1.8metre tank, but my tank is only 58cm from the bottom to water level. It will be a Reef tank.

Thanks

Slug

Should be fine. How long are those actinic bulbs though? You might find that you are not getting as much blue as you would like being that its a 6 foot tank (1.8m) if the bulbs are to short.

Alternatively you could change the bulbs in your MH fixtures and just skip the actinic bulbs altogether. If you were to use something like 14000k then that would compensate for the blue.