3D Tunze 3155 ATO Plastic Rimmed Tank Adapter Size:1" width Frag with one large polyp

Frag with one large polyp and at least one small polyp started

Green around the skirt

Gorgeous glitter Goni

The two plastic tabs that hold the emergency shut off float switch and the optical sensor are highly adjustable up and down and will give you greater ability to set your water level

Available in 3 widths for different sized plastic rims (red line in the second photo)

3D Tunze 3155 ATO Plastic Rimmed Tank Adapter Size:1" width Frag with one large polypThe magnet holder for the Tunze 3155 ATO bumps up against the bottom of the plastic rim in a standard tank when trying to raise the optical sensor water level high enough to prevent HOB filters from excessively splashing and making noise. This adapter hooks to the plastic rim with nylon screws. The two plastic tabs that hold the emergency shut off float switch and the optical sensor are highly adjustable up and down and will give you greater ability