I’m a total failure — can’t grow coralline algae to save my life!

[Jeroen1975]

Interesting — parameters have been good. Like I said — I have all SPS growing like crazy, even “designer” ones. I do have an urchin and he loves coralline algae but not on the back wall though.

NO3: 20, PO4: 0.10
Alk is very stable at ~8.8
pH is above 8, peaked at 8.3 (I do need to replace my CO2 media to bump back up btw)

Current view

Whats happening to your Mg and Ca?
Dosing 1 drives down the other?

 

[bakbay]

Whats happening to your Mg and Ca?
Dosing 1 drives down the other?

Nope — low on reagent. I’ve learned to ignored them once they’re under 25%. Here’s the current param after replacement. I’ve pushed up Mg a little bit last week but it was already at 1300.