DE or SE?
If this is the bulb you plan on running, I would suggest one of the new e-ballasts that will run regular M58 style bulbs and also has an HQI or Super Lumen setting in case you decide later to use a European bulb that may be a HQI bulb, such as Radium. This will give you some flexibility in bulb choices.
There are several out there, Lumatek, LuXcore, Galaxy etc etc.
I have a 50 gallon (30"L x 24"W x 18"D) what would you suggest I use? And can you recommend a pendant or fixture. Thanks.
Added. My tank is mostly sps.
Normally I enjoy researching but lighting has never been part of that.
i have a 72" standard 125, and am currently using 4 36" 4 bulb odysea t5 fixtures. the bulbs are all over due for a change, and i hate the look of them on the tank and all of their wires. i am picking up a coralife pr with 3 150w mh and 4 96w pc's and led moonlights. all the bulbs in the new fixture are less than a month old. i only have lps and softies mostly low, and simple acros and monti caps up high. is this going to be a downgrade in light?? im just confused and a little burned out on this right now. and if so, is the corallife fixture able to be modded to be 3 250w mh?
Raise the light, shorten the photoperiod or use a few layers of fiberglass screen to help shade the corals from the light until they are acclimated to it.Well I had pc and upgrade to mh 150w, it look 100 x better ,but now my coral look like they are bleaching . Any idea what can be done ?