Seriatopora vs Acropora PE differences?

[SpSChief85]

Ok so I've noticed over the last few months the seriatopora I have in or have added to my systemhave had long extended droopy looking PE while my acropora have had decreased PE. My tank parameters are as follows

Calcium-480
Alk- 9
Mag-1400 ish
Po4- 0
N03- .25ppm
That leaves me with the thought maybe my system is starved and the difference between the two species is that in a ULNS the acropora look starved with little to no pe and the seriatopora have a significantly extended polyp extension. Also to note in any considerations my nutrient export methods include skimming and a diy ATS just gfo online maybe 2 weeks ago and that was after I noticed the difference and was waiting on test kit refills.

 

[markalot]

Do you have any pictures showing the corals?

 

[SpSChief85]

I'll take some tommorrow evening, I work nights and just got off a 5 month 70 hour a week stent. It's pretty noticeable.