My coralline is receding......

[kookerson]

Params are: Calc @ 420, PH low at 8.0, alk low at 2.5......3 days ago, I just rearranged my rock work and noticed that alot of the Coralline has turned white.....any ideas? My profile information is up to date.....

 

[Flavum]

well maybe its from moving your rock around. I know when I re aquascape if I put a rock on the bottom to the top it has to adjust for a couple weeks till its looking all sexy and purpley again.

 

[Waxxiemann]

I would check your magnesium levels.

 

[sunfish11]

Since you just had low Ph and alk, that is probably your problem. Get your alk, calcium, and mag in balance and it should recover quickly.

Lisa

 

[Aquarist007]

I agree, ideally mag should be at 1300 ppm, calcium ~400ppm and your alk slightly on the high side 11dkH for optimum corraline growth

pH is ok at 8.0, that's all I get because of carbon dioxide problems in the house

that said--you don't have a pincushion sea urchin do you--they love to eat corraline

 

[kookerson]

I just realized something. About a week ago, I sold about 3/4 of the chaeto that was in my fuge........I had about 2 1/2 gallons of chaeto, now down to maybe 2 sandwich bags........

 

[Aquarist007]

<a href=showthread.php?s=&postid=12344755#post12344755 target=_blank>Originally posted</a> by kookerson
I just realized something. About a week ago, I sold about 3/4 of the chaeto that was in my fuge........I had about 2 1/2 gallons of chaeto, now down to maybe 2 sandwich bags........

I don't think that will have any affect on corraline growth--possibly your phosphate and nitrate level