lack of coraline :-(
 

I've been running my reef for a year and am somewhat surprised by the lack of coraline. Calcium and alk are in check. I'm running pellets and halides with led supplementation. Any thoughts?

coraline
 

depends on what's in your tank.something might be eating it(urchins)or using all your calcium

check your phosphate and magnesium levels
Maybe scrape some coraline off of what you have on some of your rock into the water line as this help seeding.

Don,t have any urchins, and according to Elo's, my phosphates are zero.
I think its time for a hanna checker or 2
lower rocks have some coraline, but upper rocks are relatively bare. good thing i have some beautiful Bali live rock to make it looke nice and natural.

Maybe its being breached by high 6500k range lighting,as coraline really grows crazy in the blue spectrum range

Try using Purple Up. Or scratch some of the coralline off ur rock n putting it near power head to spread it

Get an acrylic tank, and the coralline will be sure to find you.... I curse it every time I clean mine. You should not be complaining...

thanks for the tips.

I can't get coraline to grow for anything in my tank. It grows on anything black plastic but not on my rocks etc. Phosphates under .09 according to my Hannah checker. Calc and alk always in the green Etc. Doing 20k bulbs so it isn't the spectrum.

Coraline has a direct link to magnesium; something about how they need to uptake it to balance out the Calcium. Anyways its in the Reefkeeping.com archives if you're curious for the longer read. The short version is though that you might find you get better, more robust, growth when your Magnesium is balanced. That being said, its always good to cultivate mutiple strains of coraline, nothing wrong with a few scrapings here and there from a variety of good sources. I found it took my tank about 8 months before my coraline really started to take off.