I have a 6 ft x 2ft x 2ft freshwater tank with holes Drilled for plumbing for a sump about 3 inches from the top left and right corners
a few questions
Is there a way of closing the holes so i can fill tank to the top?
is there any fittings i could use so when i am ready to fit my sump i could use them .like plugs of some sort that can come in and out
i was thinking of sealing them off with a few glass squares and silicone
but i feel that would look a bit shite :-?
any ideas would be appreciated
cheers guys