Re-silicon a used tank?


New member
I just picked up a used tank from a local reefer this last weekend. Not sure how old it is, but it looks good. One thing I did notice is there are some spots on the inside that feel like some of the silicon has worn off. I was just wondering if it would be a good idea to add some silicon? or scrape off the old stuff without fully taking it apart, and put new silicon on the inside? Not really sure how it works but figured it wouldn't hurt anything...


New member
i did that to the fragtank i have. take out all the silicone with a razor blade. then use a (shoot forgot solution) to take out the remaining silicone.

its like paint thinner but not exactly i think.
i used a metal brush on a drill to scrape out more just to be sure and roughen the glass a little so the new silicone will stick.

then i used the ge silicone to redo it.

tanks been running for a few months with no problem.

good luck