Light requirements?

[airtime23]

What would you consider the minimum light requirements to be able to keep LPS?

For example, is there a general rule of something like watts per gallon, or watts per depth of tank?

 

[dc_909]

I have kept LPS under PCs, Halides and PCs and Halides and T5s. The better the light, the better growth and color you will get. If you are talking about your 20L, I would think about getting 2-3 24" T5s.

 

[airtime23]

I currently have PC, with a total of 130 watts. Is that enough/adequate for LPS?

My softies are doing great with it.

 

[drummereef]

I have 192 watts of PC lighing on my 40g and keep LPS no problem.

 

[airtime23]

So I should be ok, thanks for the replies.