Originally Posted by
crypt keeper
http:///forum/post/2817107
this is why i ask these questions. Gorgeous tank. are my lights considered low even at 12 gallons?
2watts per gallon with powercompacts for a 12gallon is REALLY low...even 48watts(4wpg) is really low... You want to aim for 7wpg or higher and be using a metal halide or T5HO.. While watts per gallon isn't that accurate, it is a generally good indicator.. Other things that effect lighting are height off the surface of the water, height of the tank, sand bed, vertical and horizontal placement of corals in relation to the light, reflectors, bulb brands and color temperatures, ballasts, efficiency of the reflector, tops over the tank, protein film on the surface of the water, and placement of liverock. While this may not be a complete list, it does address alot.