The odyssea's arent as bad as people say, at least in my ecxperience with them. They weren't individually reflected bulbs but I was still able to keep almost any coral and a nem at the time. You just have to be careful of coral placement. I also only had a 29g tank so I got decent coverage.
I'm not so sure about the metal halides they make though. they used to catch on fire from reports but that was a while ago and people say it's fixed now. A few people on here have bought them (mh
) and had mixed results form what I've read. some have had bad ballasts from the start others not too thrilled with the quality.
If I needed a cheap fixture I would consider them, in my opinion anyways.
Is this for this tank, the 75g or the 40g? If for the 75g I probably would pass as their 4 bulbs wont get you the coverage you need.
Can you hang fixtures or do you run covered top? Cause the hydroponic fixtures would probably be a better bet, even though you'd need new bulbs most likely. I am/was/still considering them for my 90g build. I was gonna just sit them on the glass covers i will be using. BUT 6-8 bulbs would be way overkill for my FOWLR
so i'm still undecided.