tom obrecht
Active member
I have an 8 month old reef that I started over from scratch. And when I started over I mean new display, new rock, new lights, new calcium reactor and other toys. I have run halides over all my previous setups for some 20 years. I decided I would run Radion X15's this time around. My question is what par readings are sps ers running these days? I recently did some par readings of 200-250 in the majority of the display but am wondering if that is on the minimal side? I ran 250 watt halides plus either reefbrites or T5's on previous setups. Anyone want to chime in on their "œsuccessful" ranges?