I have the Nova T5s on my 58 and my two 75 gal tanks. I really like them. On one 75 I have the unit you are talking about. I have shrooms, LTA, leathers, polyps, palys, torch, nepthea and lobophyllia. All are happy. The other 75 has the Nova with 8 T5s. I have monti, pavona, pectinia...