Same here. 8 lbs fish line about 10 inches from a Wp40. My angel, tang, Foxface and blue spot rabbit work for it. I tried the suction cup but it failed. I actually run 2 nori clips with fishing line so everyone gets a good plate at the table!I removed the suction cup and attached a string so I could hang it in the tank and then just pull it out once they're done. I think a magnet would be better but at least this way it's not falling in the tank anymore.