Any suggestions on how to keep an anemone from getting sucked into your filter intake?? Mine is a Penguin Biowheel 350 and it has two intake areas. I just got a new rose nem and he has already gotten stuck once. I tried stuffing the intake with phosphate absorbing sponges because it was the only thing I had, but it seemed to really slow down the flow of water. By the end of the day, everything else in the tank was looking ticked about the lack of water flow.