Reef nutrition

What Eats Coralline?

GDawson

GDawson

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I can’t grow coralline on my rock to save my life…..the rocks are routinely scoured like one of the road smoothers they use on the freeways to even the concrete. Any ideas?


-Gregory
 
Try pushing you calcium, coralline is mostly composed of calcite. Also, it's not a big fan of NO3 or PO4, it has to compete with microalgae when those levels are high.
 
Alk 8.5-9.5
CA approx 400PPM (with softies wasn't keeping it that high)
NO3/PO4 not registering

But I do seem to have quiet a few of the stars.....hmmmmm. They shouldn't be too hard to remove. Only the larger ones are left. My toby ate all the smaller ones and has kept the population under control.

So remove the stars and up tha CA and we'll see.

-Gregory
 
My LME's etch it away due to high intensity!
Bottom of rocks and things purple as can be. Topside pale.
Sounds like you don't have that problem though.
 
seminolecpa said:
Think MG helps too. Not completely sure but my old tank was a corraline factory.
Click to expand...


Interestingly enough there's little to no mag in the structure of coralline, I think it has more to do wit the stability that mag provides along with the ability to keep Ca levels high without precip.
 
I'll check my salt mix....WCs should be enough to cover the Mg level......yes?

I use Salinity if anyone know off the top of their head...

-Gregory
 
The Beldam!

180px-Coralines-Other-Mother2.jpg
 
My bucket of Salinity claims magnesium to be 1335. If you do regular water changes and aren't severely depleted this should be adequate to maintain magnesium above 1000. As Jeremy says, magnesium is important for keeping calcium levels up but it's not heavily used by animals. Perhaps do a bigger water change and see if that improves anything.
 
I've seen big differences on coraline growth when switching between LEDs and MH.
I don't know if there is any scientifc evidence, but it's something I observed.
 
bondolo said:
My bucket of Salinity claims magnesium to be 1335. If you do regular water changes and aren't severely depleted this should be adequate to maintain magnesium above 1000. As Jeremy says, magnesium is important for keeping calcium levels up but it's not heavily used by animals. Perhaps do a bigger water change and see if that improves anything.
Click to expand...

more on the subject of using water changes...

http://reefkeeping.com/issues/2005-10/rhf/index.php

MG is used by most reef building animals IIRC, like a 1:3 or so ration with CA/ALK... some one correct me if I am wrong... my memory is not like is used to be and I haven't needed these factoids in years.
 
newhobby said:
I've seen big differences on coraline growth when switching between LEDs and MH.
I don't know if there is any scientifc evidence, but it's something I observed.
Click to expand...

I must admit my new all-led system does not grow Coraline as well as expected.
Mostly seems to grow the blue version, and largely in shadowed areas.
Could be other issues of course.
 
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