GSP not opening

[bradb90]

Hi,

many help appriciated.
got some GSP couple weeks ago now an yet to see it all come out, occasionally get the odd couple polyps starting to come out but don’t fully extend.

parameters
PH 7.8-8
Temp 25.5c / 78F
Ammonia 0
Nitrite 0
Nitrate 2.5-5
Calcium 470
Magnesium 1280
Alk 8

 

[Troyer15]

Parameters seem fine. Could be lighting or flow.

 

[Jekyl]

Nothing kills GSP. I'd recommend getting it away from your main structure before it takes the tank over.

 

[bradb90]

Got around 3000 litres/ph come from the sump split between two random flow generators and a Nero 3 running around 5800 litres/ph.
light is just a fluval marine 3.0 but is being used in the LFS over the same tank with no issues.

 

[bradb90]

Light settings if there’s any suggestions

 

[BZOFIQ]

Make sure water flows over it and not directly into it. It will open up.

 

[G Santana]

Mine on occasion will close up for a few days and then opens up fine. Give it some time.