Aquarium Advice - Aquarium Forum Community

Aquarium Advice - Aquarium Forum Community (
-   Saltwater Reef Aquaria (
-   -   90 gallon reef lighting (

nickthapainter 01-11-2005 03:30 PM

90 gallon reef lighting
Have decided to go the MH route from the start (otherwise I'll end up upgrading later)!

Tank is 24 inches deep.

I'm looking at the 48" Aquaspacelights @ Captivereefs (wife loves the look of the fixtures)

Would I absolutely need to get the dual 250's or will the dual 150's be enough light to possibly keep clams and other light loving corals happy?

I live in Florida, so heat issues are of a foremost concern (will be an open tank)

Any help/advice would be greatly appreciated

(many apologies for putting up yet another "watts per gallon / light intensity-penetration" )



Clown Monarch 01-11-2005 03:36 PM

Do they make a MH 150w? I thought they were either 175w or 250w.

nickthapainter 01-11-2005 03:38 PM

the HQI double ended bulbs are 150 watt

Clown Monarch 01-11-2005 03:39 PM

Whoops, double-post.

tripper 01-11-2005 03:40 PM

I have the Coralife MH hood and it is spectacular. It is a 2X150W MH setup with 2X96W actinic PC lights as well. I have mine over a 72G which is also 48" wide so you could use the same one on your 90G. With that much light, 5.5watts/G you should be able to keep just about anything. Clams or SPS you might need to put higher up in the tank, but they will love the MH.

I got my light from and used the AA discount. I highly suggest it.


Clown Monarch 01-11-2005 03:41 PM

I think you'd be alright with the 150s, myself.

nickthapainter 01-11-2005 03:47 PM

I like the fact that the Coralife hood is remote ballasted (less heat in close proximity to the water).

How high do you keep your lights from the surface of the water?

Would I be able to mount these lights as a pendant (easier to place fans delow the bulbs)



nickthapainter 01-11-2005 03:48 PM

almost forgot,

by how many degrees do your lights raise the water temperature?

Clown Monarch 01-11-2005 03:57 PM

I have a 250w MH about 10" over a 44 gallon tank in a hood that's 75% enclosed. I put 2 fans in there just in case, but there is no noticeable temperature increase - and that's with the fans off.

Clown Monarch 01-11-2005 04:07 PM

You'd probably be able to use it as a pendant unless it's a retrofit kit specifically designed to fit in a hood.

All times are GMT -4. The time now is 05:44 AM.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2019, vBulletin Solutions, Inc.