Too Much?

[CandyCane]

Hey guys so im doing a 20 gallon nano, standard tank, and wanted to know if this was to much light. Im planning on suspending it but im not sure. I want to keep a hammer and a torch with a GBTA and a maroon clown. I may in future want a few other SPS or LPS corals but I cant see myself getting any hard corals for this tank.

this is the light its a 150w HQI with two t5 actinics for a total of 174w
http://cgi.ebay.ca/18-Metal-Halide-A...item43a6ea3bab

Thanks

[lorenz0]

Sump or no sump?

I put my HQI 150MH over my 20H and in one day it raised 9 degree's to 89... took it off and replaced it with a 4 bulb t5 fixture and it only raises 2 degree's. look into 4 bulb t5 fixtures, you can get a fish need it for $80 before shipping and you can keep what ever your heart desires

[CandyCane]

There will be a sump under the tank. It heats the tank even with the cooling fan? So basically if I got the one I was looking at for sure hang it to disperse heat

[lorenz0]

I ran the same light on the 25gal cube with a sump and only had a 3 degree increase, if you have a fan that will for sure help. Water volume for sure played a part

[RuGlu6]

Keep it higher and have a fan bloving across the water serfice, it will cool by evaporation, or have air flow across lamp this will also help.

[CandyCane]

Okay so if you ignore the heat factor is the light amount okay for the corals?