Koralia Nano 240gph?

[QuentinSaltwater]

Hi everyone, I have a 10g cube, I am wondering if I should get a koralia nano 240gph wave maker. The dimensions of my display are 13 x 13 x 13, I have a toadstool coral, one rhodactis, green star polyp and a white organ pipe coral. I‘m wondering if I should get this wave maker as I’m not sure if my toadstool is getting enough flow. The little hands at the ends of the polyps never really open like I see in other toadstools, and the polyps don’t move at all. I can also see the little particles in my reef don’t move as much around there as in the other areas of the tank, there is more flow that circles around the bottom a bit. The blue arrows are the higher flow and the red arrows are the very low flow, I also wanna get this wave maker for future additions like a duncan coral and trumpets. However, I’m scared it might be too strong as the last time I had a pump of 200gph it sprayed sand everywhere in my tank, but this pump was facing the back wall at a flat angle halfway down the tank. If I place this pump facing the surface of the water, will it help? Pls let me know, thank you.

 

[SeahorseKeeper]

I think it should work. You might have to tweak the placement for the results you are looking for.