t5 bulbs

I’m setting up aquaticlife t5 hybrid. Will use a pair of radion XR30 (non-pro) + 4Bulb T5 Tank 36x22x22 objective: sps dominant How to get a good spectrum? New with hybrid? What are some recommendation on T5 selection? What T5 combo should I use? Thank you :)

After a lot of reading I noticed the true actinic bulb is the only bulb that hits 425 nm where it’s most significant according to the chart. Why don’t people use this bulb other than the PAR value? Thoughts?

After a lot of reading I noticed the true actinic bulb is the only bulb that hits 425 nm where it’s most significant according to the chart. Why don’t people use this bulb other than the PAR value? Thoughts?

I currently have a 90 sps dominant reef with 2 Hydra 52hds and I'm looking to add t5 supplements. I am looking to get the t5ho dimmable retrofit but my question is should I get 2 bulbs on each side totaling to 4 bulbs or 1 on each side totaling to 2 bulbs. I have a good amount of shding in the...

Originally I had a DIY LED fixture that I made myself (see pics). When the hurricane hit the ceiling gave in and it fell into the tank and fried. Currently I have two XR 30s and a 24” Aquatic Life fixture. I’m not happy with the Aquatic Life but see the benifits of T5 lighting. My Aquascape is a...

Took advantage of @Bulk Reef Supply awesome sale and picked up a new ati non dimmable 4 bulb t5 for my 75 g build (along with lots of other goodies including the 2016 apex, so exciting). Got a few bulbs 2- B+, 2-C+ and a couple of different singles to try out. I did read a few articles on the...

I've looked all over the web and asked a couple of LFS but no one seems to have a formula on how to size the T5 bulbs... I understand that every tank has different requirements and everyone has different tastes but there has to be some sort of formula to determine the PAR range of a specific T5...

hey guys, I'm currently setting up a low boy frag tank. It's going to be about 100 gal system. I wanted to put an ati fixture over it and was wondering if to go with a 4 or 6 bulb. The low boy is 10 inches tall and think a 6 bulb might be an overkill. Also at what height should I hang the lights...

I am upgrading to a 180 gallon tall tank. 72 “long, 18” front to back and 31” tall. I bought four 48” T5’s and one Kessil AP700. I plan on stocking the tank with SPS alone with a wide mix of other corals. I plan to put the T5’s in the middle (left to right), about 10” high with two close...