The VeggieMag was designed for the larger species of fish.
Angelfish
Naso Tangs
Triggerfish
Harlequin Wrasse
Other larger fish that usually can defeat the VeggieMag's magnetic coupling.
The MegaVeggieMag, which uses a 1” diameter x 1” long ultra high strength Neodymium magnet, will keep the clip in place! Watch the surprise in your big fishes’ eyes as they try but can’t yank the clip off.
Features:
For aquariums with 1/2" to 3/4" (13 to 19mm) windows
Easily retrieve and load clip without getting your hands wet
Outside housing with static cling surface sticks to window while you load clip with food