I sent this as a PM, but decided the information is worth posting here.. someday it may give someone something to ponder. That alone makes it useful.
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So I would definitely say upping my lighting has helped me out a lot, especially since most my corals we're on frag racks in relatively low par.
So here's what I noticed:
- Alk consumption went from 35mL to 120mL in a few weeks
- ring around the corals on frag plug. This is the coral stinging everything in it's growth path. Corals do this when they're really moving
- new growth. Most everything is growing new arms, especially the corals that have been seemingly dormant or slow growing
- brighter new growth. All new growth is much more colorful and vibrant
So a lot of obvious nice things. As far as my lighting goes I'm using the radion AB+ program, which is equivalent to 8 ATI B+ bulbs, and 2 ABS bulbs. Whenever you hear people talking about AB+, that's the ATI combo they're mimicking.
So if you really wanted to try something crazy... Switching to the AB+ lighting is shown to be one of the best lighting options. So much so that
BRS makes an AB+ template for every light they sell so customers can emulate it with all lights. AI, orphek, geisemann, you name it. It's in all their product videos.
The ABS bulb will give you what you may be missing. It's a very yellow and green heavy bulb, and SPS gurus have sworn by using a similar bulb forever -- the GE 6500.
So consider throwing in an ABS dead center. It will round out the missing soectrums.
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So it makes me wonder if anybody is using the AB+ program with T5's beside the company who worked with ecotech to make the coral lab studies and templates.
The most useful information I've ever given people is through PM's when people ask me questions.