Lighting for 20g tall

[Jake_the_reefer]

I am currently using a black box light on my 20g tall reef tank and would like to switch to ai primes. Would 1 ai prime work or should I do 2?

 

[Max!]

1.
A 20 long has a small footprint comparatively speaking, If you're super worried about coverage you can just raise the light, and increase intensity as you do that.

 

[Jake_the_reefer]

1.
A 20 long has a small footprint comparatively speaking, If you're super worried about coverage you can just raise the light, and increase intensity as you do that.

Okay, my tank is lps dominated, I do have a montipora tho but that is in the top third of the tank. But all in all one would be perfect? And of course one on my 10g nano or should I get a smaller light for a 10g

 

[Max!]

I have a little 12 gal JBJ. It's ancient but I snuck a little HIPARGERO Knight LED in there and even that thing is over kill. I literally just switched from a 20 tall to a 90 cube. That Hipargero was doing well there as well. Unless you have money burning a hole in your pocket one of those primes on a 10 gal would be silly.

 

[Max!]

 

[Jake_the_reefer]

I've heard good stuff about that light. Inappropriate reefer recommends them as well. On my 10g I'm using the stock light from the fusion 10g kit its sooo not good enough from what I can tell.

 

[Jake_the_reefer]

Anyone else have input on one ai prime on a 20g? Or what is the max size for 1 prime

 

[23Andy23]

Anyone else have input on one ai prime on a 20g? Or what is the max size for 1 prime

I have a prime on a 5 gal and 3 gal, 5gal is lps and the 3 gal is just starting with sps, I like em. So I know it's been a couple weeks but my advice would be get one and see if the coverage works for you and worst case you can add a second, but I'm thinking one should be fine for you u less you start throwing acros all over the place