I have a screen top on my aquarium, what size hole do I need to cut in it to accommodate the feeding tubes?Updated 6 months ago

For Rimless tanks:
When fitted to a rimless tank, the mount will be 26.5mm (1.04") wide and will protrude a minimum of 17mm (.67") into the aquarium.

We recommend having the hole made 28-30mm wide and 20-22mm deep to accommodate the aF4 tank mount.

For Euro-braced tanks:
When fitted to a Euro Braced tank, the mount will be 26.5mm (1.04") wide and will protrude a minimum of 20.5mm (.81") into the aquarium.

We recommend having the hole made 28-30mm wide and 22-24mm deep to accommodate the aF4 tank mount.

Alternate, no cut method:
In some cases, you may be able to route the aF4 tubing through the teeth of the overflow if your aquarium has teeth that are wide enough to accommodate the tubing.  The possibility of the food getting sucked back down the overflow is higher, but with some creative positioning and the right flow - this can be minimized.