Enough lighting for clams + Hardies?

[bob`_your_dog]

Now that i've uprgaded my lighting i'm just wondering if i have enough for those hard corals.

I have a 150 MH 10 000K, a 40w 18 000k a 40 watt 10 000k and a 40 watt actinic.
For a total of 270watts in a shallow 4 foot tank 60 cms deep

 

[Max]

probably not SPS, but maybe a low light clam. and I think LPS would be alright.