Hello,
As you can see in my picture I have a 240 gallon tank that is 72 long 34 deep and 24 wide. I run two 72 inch current orbit marine pros on this tank and my coral are amazing. From the research I have done (which is extremely extensive) my par levels at my sand bed are just over 200 in all areas. This was using a profession lux and par meter in the science lab and aquarium that I volunteered for. In order for me to set my lights correctly I did a lot of math actually (meaning I found the sin/cos while dry and while wet used the (FWHM) equation while wet. This gave me the exact information I need to know where to move and place my lights, for best coverage, and make sure I did not have any shadowing in my tank.
I have been growing sps (at a rapid rate, and Maximus clams that are just slight above the sand bed). I say this because they are on a rock so I can move them later if needed. I have had zero issues with them, and current USA customer service is beyond amazing.
I have the current orbit marine pros (aka the ones right before the new current marine ic loop version). There is quite a difference in them. The ic loop have 90 degree lens, as to a 60 degree lens on the current marine pros. In addition the ic loop can not handle anything above a 125 gallon tank either. They are also not ideal for growing sps and or even clams.
The current orbit marine pros, can handle the highest demand sps, and any clams as well. Based on the math and lol numbers don’t lie, I would probably not go past a 400 gallon on them. Your will need a lot of them to cover front to back, but depth your fine up to 36 inches. As a point of fact the local aquarium I volunteer for now, has two of them on a deep 500 gallon mixed reef now. Not sure how they didn’t cause I’m too short to look, but their tank grows just fine as well.
In regards to your tank, any of those lights will work (except maybe the very first current lights). The loop ic lights will do just fine since it’s only a 75 gallon. If you look
@120reefkeeper he runs two currrnt orbit ic lights and his tank is beyond amazing. So those saying these lights can’t handle anything above a 75 is obviously not true. Some pics of your light and tank would help a lot. Here are some pics with of my tank taking with a flip phone (I may add). I hope this info helps.
Sincerely
Sarah
