Anyway to screen off Seios

[chris2222000]

Hi everyone,
A couple of questions:

The tank is 125 gallons, dimensions are 72"-18"-22" and have been up for a few years.

1) Are 2- Seio 2600 too much flow for anemones, along with a Mag 18 return hooked up with penductors?

2) Are there certain species of Nem's that love water flow?

3) Is there a way to protect wandering Nem's from my Seio 2600's?

Thanks
Chris