need to seal a leak

[krazykarel]

What product have y'all used? I need to seal a small leak on my 50g acrylic tank?

 

[kraze3]

where is it leaking and how bad?

 

[thegrun]

Weld-On #4 will seal cracks (it has the consistancy of water and flows well, but does not seal wider gaps), Weld-On #700 is a thicker bodied solvent that will fill larger gaps.

 

[krazykarel]

The leak is on the seal on the lower front of the tank. It's not a drip leak, couple of spots pop up every minute or so. I don't know the manufacturer so I can't call them.

I have heard of Weld on, but can't seem to find it anywhere! Would you direct me to a store please?