How many t5 bulbs?

[DcoarM]

I current'y have a 75g mixed reef. I was having great success with it until I moved about 4 months ago. Since moving I lost a RBTA to a power head and a couple sps frags... I have another RBTA, but it looks deathly, but its mouth is shut and never gaps. He was running laps around the tank, but about two weeks ago found a spot it likes. I replaced my bulbs last January, so it has been right around 10 months since all of them have been in. I am hoping that replacing the current bulbs will help the RBTA and continue growing all of LPS. How many bulbs would you say I need? I was running 4 ATI bulbs and had great result, but I feel like I need a little more light.

 

[ReeferRookie]

If u add more light u might upset the rbta more or even bleach ur lps

 

[tigerdragon]

I run a 6 tube t5 on my 90 and my bta loves it and its in petty good flow near bottom of tank

 

[DFW]

I would add some 3 watt royal blue LEDs, or at least 2 more t5s. I use 4 t5s with 14 3 watt RB crees and luxeons, and 16 RB epistars on my 65 gallon acro tank.