LED Recommendations - 410-420nm supplementation

[daplatapus]

Looking at those on your link, I doubt they have much punch to get very far into your tank. I'm not sure you'd get any effect down low in your tank. Just a gut feeling, no experience with those strips whatsoever.
I got mine from ledgroupbuy. I have noticed however, that it seems the spectrum coming off these leds do something wierd with the plastic on their lenses. After a year or more, the lenses on mine are now brownish. See if you can get some without lenses.