You can try one of these, may be good for night viewing
http://www.aquatraders.com/LED-Subme...22-p/56222.htm
I got similar strips (link from previuos post) but from from Onstatetechnologies fall in to the tank and it was in water for more then an hour it it was ok because its waterproof. Mine are 470Nm.
http://www.ebay.ca/itm/Aquarium-440-...#ht_1700wt_919
RGB noted above are Not waterpoof.