Yeah, the best feature is to grow algae, but you have to watch the temps. I used to keep a SW tank in direct sun and had hair algae like crazy. Once the entire back had a 3" carpet of green hair algae, I got my Yellow tang I always wanted and he kept it down to 1/4" at all times. Free food and he was grazing allllll day. I would do it again but have a TON of Otocinclus.
125g semi planted. 2 silver angels, 14 silver tips, 16 white fin ornatus tetras, pair of Nicaraguense, pair of nototus severums, trio of firemouth cichlids. 2 FX5s, 1 1500gph circ pump, 2 48" LED lighs, and a HUGE piece of driftwood.
650g fish room. 15 30g tanks, 150g sump.