What's the best t5 supplement?

[Kzoo]

I have 3 radion G3 over my 180 looking to add a t5 retro, whats the best bang for your buck?

 

[drtrash]

Look at bulk reef supply micro t5 if you are diy, blue + & coral+ or 2-B+ will help radion

 

[racin2438]

I added
2 ATI
and
2 Giesmann

looks great.