Is this a good fixture for medium-high light for a 20 gallon long planted tank? http://www.ebay.com/itm/111122300644?ssPageName=STRK:MEWAX:IT&_trksid=p3984.m1423.l2649
The Ray II will be in the same price range and will probably be a more appropriate level of light for what you're wanting to do. Plus it will looks nicer than that fixture.
He should be able to do just about anything with the Odyssea though. The quad would have him around like 140 PAR in a 20L. That's well over the high tech threshold. But aesthetics do matter. If the Finnex costs the same, works as good, and looks better I'd go with it too.
I suppose if you don't mind annual costs of bulb replacement. As for moonlights, you can easily set up separate ones on a timer.. I have the current truelumen lunars setup in such that way.
If you're handy with DIY stuff than that sounds great, but I am not...lol.
He should be able to do just about anything with the Odyssea though. The quad would have him around like 140 PAR in a 20L. That's well over the high tech threshold. But aesthetics do matter. If the Finnex costs the same, works as good, and looks better I'd go with it too.
I doubt that. The odyssea fixtures have marginal ballasts, bad bulbs, and bad reflectors. You would have to buy 4 new bulbs (min $40) to even have a shot at that, and I doubt that he would even want that much light, because you're way past the cutoff for CO2 at that point.