How to choose LEDs for an aquarium

[WhistlingBadger]

(This is for a 55g freshwater planted tank, by the way. 48" long)

[Cliff]

LOL, I bought two of the same fixture as in your link from a fellow hobbyist were I live and I would not recommend them for a planted tank. I only use mine on my QT tanks when they are set-up for new fish. What I do not like about that fixture are the lenses (assuming are actually are any lenses) are far too wide of angle resulting in too much loss of light. With LEDs you need the correct combination of: color spectrum, voltage, and lenses. If any one of those factors is not correct, you will most likely be disappointed with the fixture.

However, if you are no planning anything other than low light and low demanding plants, then the fixture should work very well.

[WhistlingBadger]

OK, thanks for that info. I do need moderately high light for my plants, so I'll pass on that. Cost is a big issue, though. (Ain't it always?) Need to get the biggest bang for the buck.