how many units of radeons i need for my tank : 4x2x2ft ?

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How many units would cover a 180 Gal 72x24x25? Would 3 suffice, or would 4 give better coverage? What is the max depth penetration for useful light on these units? How high above the water line should they be mounted?

Ok, I am in the market for some new LED lighting for Christmas. I have been running some of the knock off "from china" fixtures for 3/4 year with great success. (they've actually been fantastic lights, just not adjustable, and would be moved to a frag grow out tank). I noticed the first poster has the same saze tank, and the answer was 2 Radions would work well, however, he did not mention what he grows.

I want adjustability, and the ability to ramp up for sunup/sunset. I have a 120g 4x2x2 aquarium. It is a mixed reef now, but I am getting pretty heavy with the sps, and it seems that this will be the direction the tank is going, much more sps, and less lps. I have a lot of rock, and the ability to mount frags high or low, at this time I mostly grow montipora as my sps.

The decision I have is between your radions, and AI sols. Obviously If I have to buy 4 AI sol blues, and only 2 radions, the radions are the better buy. It seems the radions outperform the sols on total light produced, but I have not recieved an answer from AI yet.

I also have 3 mp40s as well, so the fact that they will interface with the radion fixtures is an awesome benefit. Will two radions light my tank well enough for light demanding sps at say a reduced intensity running through the unit? I would prefer to have enough light running through the fixtures at 75-90% intensity (I hate running things at 100% if I can avoid it-I hope to have enough intensity at these levels, with enough intensity to ramp the lights higher as things grow in-I want room to grow as it were). I am already blown away by your pumps-one of the best products I've ever bought.

I think my overall plan for the tank is lots of sps, with a lot of chalice type lps, low, and a few of the larger lps like frog spawn and trumpet. It's hard to say as the tank is constantly evolving.

Will two Radions be enough?

38g 3'Lx1'Wx18"T, will one unit be enough or will there be too much shadowing on the ends. It has zos and plays only so I am not so worried about intensity.

my tank is 102Lx36wx30h how many for mixed reef mostly lps some sps some softies thanks

I would recommend (8) Radion XR30w's for your 102x36x30" aquarium, which will allow you to keep even the most light-demanding livestock as you please.

I plan on using TRUVU reef ready 55H 36x15x24 aquarium.

How much shadowing at the edges will there be in a 36" length tank? What is the maximum recommended distance above the water for the light fixture? For best results you would recommend 2 units for a 36” length tank? What would be the largest tank size you would recommend for one unit? What type of aquascaping would you recommend for 36” length tank with one unit? Very little out at the edges and concentrated in the center?

Thank you for any help

Andy