Caulerpa may grow slow and easy to take care of in your tank. Ohh but when you get your new light LOOK OUT!! It will most likely explode and dominate every thing in the tank. I recommend not to try it at first or at least until you decide if that is something you might want. Because this might happen.
(((by the way I tried to do this and succeeded...................... until i failed.)))
I would also add more sand 3-4 inches has been fine in many of the tanks I have set up. I might also invest in a little more
live rock.
How much and what are you feeding your tank?
At this point your dealing with 80ppm
No3
What are your
phosphate readings?
If you plan on getting a new light I would wait until
No3 and
Po4 are 0 to avoid a large algae bloom.
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believe nothing, no matter where you read it or who has said it, not even if I have said it, unless it agrees with your own reason and your own common sense.........(buddha)