Power heads for Red Sea Reefer 750

[aklouie]

Hi all, tank is set up and now filling with water. Everything is almost ready to go, but I noticed that my Maxspect Gyre 350s that are supposed to be good for 3/4” glass barely hold onto the glass. I’ve got $700 invested in these so not really wanting to not use them. Not sure if I have a choice though. Any recommendations?

 

[Spare time]

I wonder if you could get a stronger magnet to put on the outside