I have, but I didn't design it to hold them. I was looking into getting some holders that glue onto the sides of the sump, I wish there was something a bit more removeable if required. Attached with magnets would be nice. ^_^
Edit: I'm dumb, found some within 10 minutes of looking. Added to my wishlist!
Edit: I'm dumb, found some within 10 minutes of looking. Added to my wishlist!