I just got one of these, although I haven't set it up yet. I'm curious, however. I was told it comes preinstalled with 70 degree optics, however mine has (I think) 100 degree optics on the corners...according to the Coralvue guys, these are the actinic LEDs. So, if I change to 40 degree optics (deep tank) should I change the actinics to 70 degree? I'm confused by this. I'm also confused by which lens is the 100 degree and which is 40 degree, as the manual says different things on page 3 and page 15. I'm guessing page 15 must be right (40 degree looks different than the other two...hard to explain if you're not looking at it) otherwise it actually has the 40 degree lens on the actinics and that makes no sense whatsoever. Ugh....
The 40 degrees have bumps on the lenses. Be careful when using those if u have coral. It make a narrow beam that could cause some bleaching. The 100 degree arent as thick as the 70. If u hold them side by side u can see the difference. Mine had 70 installed with 100 on the actinic. I changed them all to 100 also. If your tank is over 24 deep youll probably have to use the 70 to reach the bottom. I have 3 modules over a 4ft long. I might change out the whites for 70 to see if my coral respond a lil better. If u have the 40 on the actinic then change them to 70 cause u have a deep tank. It also depends on how high your mounting the modules over the tank.
My tank is actually about 30" deep. I don't expect to keep SPS on the bottom or anything, but my rockwork doesn't go all the way to the surface either. You think I should at least start off with 70degree optics?
Yes. Definitely start with the 70's. How many modules do you have? What size is your tank? How do u plan to mount modules? Rails? Hanging kit?