IMO your tank has too much light on it and u probably have a good chance of burning certain corals.
Wow, that is a pretty strong statement. I run 2x250's MH
and 2x54 watt T5's on my 75 gal
. Is that too much too? Been running for over 3 years.... I house about ever coral you can think of... mushrooms to acros and even a clam.
I think you are taking the wattage rule too generally. MH
lights do not equate to the WPG
measurements that some people use. IMO
, you could have some softies in a 120 with the current fixture you have. I ran a 4x55 PC
fixture on my 75 when I first started and had a lot of growth with mushrooms and leathers. In a 120 gal
, the depth will prevent you from keeping some things.
If you think the 150 pendant is a good deal then go for it but I know there are MH
kits on ebay that go for the $120 range and that is a 250 watt reflector/ballast/bulb kit. I run a 150 pendant on 1/2 of a 4ft 33L. The tank is 12" deep. Works well for the acros that are under it. Honestly, I don't know what a pendant would like like over a tank that size. It would be tough to get the current fixture and the pendant over the tank. You would have dimmer areas on the ends for sure. If that is what you are looking for than go for it.