How many AI Primes for acropora in innovative marine fusion 20?

[NanoReefs]

Hello everyone. I currently have one ai prime on my innovative marine fusion 20. I am starting to get into acropora and I currently have a green slimer that is growing well. Do you think I should add an additional prime for more PAR and spread?

 

[Boostable]

I run a single on my IM20 frag tank. If I had two I would have to pull the power way back? But really depends on your goals.

 

[NanoReefs]

Do you have acropora?

 

[NanoReefs]

I am running the BRS custom AB+ schedule.

 

[Ippyroy]

Instead of a new light, I'd buy a bigger tank. Acros are very temperamental, and small tanks like an IM 20 are extremely difficult to keep steady. It is super easy to have temp swings or Alk swings in them. Things like this can kill acros very quickly. The only way to know if you need more light is to use a PAR meter.

 

[Boostable]

Do you have acropora

yes.

Instead of a new light, I'd buy a bigger tank. Acros are very temperamental, and small tanks like an IM 20 are extremely difficult to keep steady. It is super easy to have temp swings or Alk swings in them. Things like this can kill acros very quickly. The only way to know if you need more light is to use a PAR meter.

But agree with all the above regarding stability

 

[tnw50cal]

I have a IM 10 with one AI prime 16HD over it, I have grown acropora in it for over a year. I also have a IM 20 peninsula with 2 AI prime 16 HDs over it that I have also grown acropora in for over a year.
On the IM10(no skimmer in it) I change 2 gallons of water a week(how's that for stability) and that's it.

 

[kev.2013]

I may be doing overkill, but I have 3 on my nuvo20 (well the third is arriving this week).

16HD in the center, and normal HD’s on the right/left - these are at lower intensity than the 16HD which acts as the primary source.

 

[nereefpat]

At 23" long, that's more than I would try to light with a single Prime if doing Acros.

 

[Reef of Fillory]

I'm in this same boat - want to make sure I have the right lights for my tank size for all of the high demand corals. I'm going with a 150w MH with an AI Prime HD on either side though. It's good to see/hear that people are having success with 1 and 2 Primes.