Todd,

John (thedude) set up a Korallin 1502 on his 30 gal and said it did wonders for his small tank. IMO no tank is too small for a reactor. You can dial in in to fit you needs and watch you tank explode with growth. No doubt about it my reactor is the best purchace I made for my tank. IMO a must if you want good growth on sps. Hook one up now and thank me later. ;)