I presently am getting PAR readings of 285 directly under the unit ,measuring off the sand bed. This would be the outer edges of the tank. In overlapped areas I am seeing 315 to 330 PAR off the sandbed. I am running both blues @ 100% and the whites @ 28%. In between the AI's I also am running 6 -454nm UV stunner strips with their reflectors. I think the stunners are helping much more then I ever expected . Recently I extended the timer on them so when AI's are off they would still be on. I was shocked how much they lit the tank up!!! It would be easy to credit the growth with these numbers and yes I think it does help. Kudos goes to Andy for his input on the blue glow theory. We have noticed a nice spurt of growth during the ramping of the blues to 100%. But personally I really think the growth is more from very strict water change practices and the food we use. I have totally rethought my feeding practices.Quote:
Originally Posted by Poseidon