I have a 125 gallon fish only marine aquarium established about 4 months now. I have a coral beauty, a flame angel, 5 yellowfin blue damsels, 4 4-striped damsels, 3 ocellais clowns, 2 tomato clowns, 1 high fin (banggai) cardinal, a yellow tang, 2 firefish gobies, 2 green chromis, 2 chocolate chip sea stars and 1 brittle star. All fish are (currently) small. I have an Eheim 2028 filter with appropriate substrate and chemipure in the top basket, a wet-dry Eheim 2229, an Aquaclear 110 filter with charcoal, a submariner UV sterilizer, a Red Sea deluxe protein skimmer, a Magnum 350 and Magnum H.O.T. (both with micron cartridges that I change weekly), an undergravel filter with 3 strong powerheads (crushed coral gravel), and a phosban phoshate reactor. After all this was established, I read about and decided to add some live rock just for the tang and angels to have algae to nibble on (and for the additional filtration). I don't intend to grow a reef tank or corals.
My question is: Can I (please?) just add live rock to the aquarium with some additional lighting? (How much lighting?) I really don't understand the reason some aquarists say you can't use live rock with a UG filter or wet dry filter. Please enlighten me. Also, please let me know what changes I would need to make to successfully add live rock.
I really enjoy and appreciate your website, and would be grateful for any advice you can give me. Thanks, Val