Question about under water epoxy

[ReefNasty]

I have a seam in my refugium that needs to be sealed. Is there anything that I can use underwater without completely draining my refugium and is there anything that will not affect my tank?

 

[wetWolger]

does it need to be 100% water tight? I used underwater epoxy in my sump on a baffle....but i don't care if it leaks. If you need it to be compleatly water tight i think your going to have to drain it.

 

[c_stowers]

I've been in your exact situation before. I ended up getting the outside of the seam as dry as possible then using fiberglass to reseal it. It worked, but was still a big hassel. You can get the fiberglass kits at home depot for 10-15 bucks.

 

[Iammatt219]

AGA black silicone seals glass underwater. But if your sump is acrylic it will not hold.

 

[whiteshark]

I had a leak in my fuge too, probably beacause I built it. . I used some gorilla glue on the outside, sealed it right up. It worked well because the glue is activated by a little water. It won't work if the leak is too big tho. Also, you have to be careful not to let any get in the fuge.

 

[ReefNasty]

Let me specify, the seam that I want to seal is between the bottom of the tank and a baffle.

 

[whiteshark]

AH, ok, my idea won't work then lol. Does it really matter if the baffle leaks? Mine does too.