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I wouldn't put direct flow on it but mine on the back wall does like to move around. I love it because I can tell my powerheads are running since the SPS doesn't sway.
I'll disagree a little bit from the above post. GSP like enough flow to keep detritus from settling on them, and kind of choking them out, so to speak. I am thinking that when placed on the vertical back wall of the tank, they may do well under less flow because detritus doesn't have as much of a chance to settle on GSP growing vertically on the glass.
EDIT: I wouldn't stress too much over flow for GSP. This is typically a coral that does very well in a wide variety of conditions![]()
I disagree as well. Any picture I’ve ever seen of GSP where they are super happy they are moving lolI'll disagree a little bit from the above post. GSP like enough flow to keep detritus from settling on them, and kind of choking them out, so to speak. I am thinking that when placed on the vertical back wall of the tank, they may do well under less flow because detritus doesn't have as much of a chance to settle on GSP growing vertically on the glass.
EDIT: I wouldn't stress too much over flow for GSP. This is typically a coral that does very well in a wide variety of conditions![]()
Flow, flow, flow…from one piece to covered back wall in a year and “go figure” 0 no3….
This is awesome and exactly what I’m talking about! So where is your flow coming from? What is the angle?![]()

Thank you! The toadstool was open and happy last night and then today it hasn’t opened up yet, but the gsp has a few polyps opening. Its so hard to get on cameraI'd give them a day or so and see if they open![]()
I disagree as well. Any picture I’ve ever seen of GSP where they are super happy they are moving lol
But unfortunately, they have been glued to the back wall now for about 12 hours and they have still not opened up
Dang well hopefully they’ll start looking better. I had a toadstool that opened up within a couple of hours, but has since closed and I haven’t done anything different. All my parameters look good too.Sometimes mine will close for days if I move one.