What is hurting my staurogyne plant? Also fry question

Biollante

Lifetime Charter Member
Lifetime Member
Jun 21, 2009
3,210
2
36
Surprise, AZ
CO2 Now And Forever! Brought to you by the The Military-Indutrial-CO2 Complex!

Hi,

That is red algae, think of it as the flat form of BBA, most of the time this is low or unstable CO[SUB]2[/SUB], whether this is due to circulation, method of injection I do not know.

Another possibility is lack of Phosphorous, might try raising the phosphate to around 5-ppm.
:)

Biollante
 

Aquadream

Guru Class Expert
Jul 22, 2011
140
4
16
I had the same in my AS tank. It turn out insuficient Iron. The AS is over year old and I did not bother to dose Iron cause the other plants seem ok with the Iron levels from the micro mix. After dosing Iron regularly all came to glory again.