canopy light

hi,everyone...new here,hope i'll find some advice here.i bought my first tank last saturday and trying to complete all stuff together but i got major problem with lighting.i want reef tank(sps,soft corals) with some fish.Aquarium is 100g acrylic...60x20x18 and got custom stand with canopy.previous owner never got lighting installed.problem is canopy.i got only 4" between tank and top(back is open).my question is what kind of lights or retro kit i can use in here(i would like to keep it on because of kids)inside canopy dimensions are 60x15x4 which is not to much i apreciate any help on this one....sorry for my english:-X

 

Welcome to 3reef.

T5HO and LED lighting should fit under there just fine.

Nice looking tank BTW.

 

We chatted about this and we weren't sure how tall a T5HO fixture would be. I suggested looking into LEDs, but I would be worried about heat dissipation.

 

many thanks for Seano.he is my mentor

 

Happy to help, bud.

 

if i want to have sps,lps corals how many do you guys think i need leds?
2x(36leds on 10x28inch heatsink)with 80 optics?
got email from rapidled guys:

"Thanks for the email.

If your tank is 60" x 18" x 20" I'd go with 60 LEDs instead of 48. You can still get the drilled/tapped heatsinks, just get the 36 LED version instead. If you're only 3-4" off the water then I wouldn't use lenses, at only 20" tall the tank probably doesn't need them anyways."