The Coralife T5s are not HO, not any better than the standard strip light that came with your tank...
If you guys follow the European reef sites, they're changing out the bulbs every 6 months - just like PCs, VHO, etc - That gets expensive. Don't forget they've been using T5HO for years, it's just started to trickle over into the US/Canada, don't assume that the "years of bulb life" quoted takes into account color shifts etc.
Andy
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