Anything to be worried about?
 

Hey Dave/Denny,

When I drained the water from the tank today (freshwater), I noticed these bubbles. They are not inside the tank; possibly between the rims at the back. Here's a picture attached:

http://i1304.photobucket.com/albums/...ps53daf941.jpg

http://i1304.photobucket.com/albums/...ps06eaa81d.jpg

Silicon does not last forever. I'm no expert, but if they were not there when the tank was new, I PERSONALLY would worry.

I'm assuming this is a new tank build by Concept hence it's being posted in this particular forum.

To me though it looks like condensation between the glass (on the outside) and the trim. If you had it filled with FW, odds are the water was cold and condensation formed on the glass. This trickled down into under the trim area on the bottom. Then the tank was drained, the glass got back to room temperature, the condensation evaporated off the glass except for where air circulation is poor (ie under the trim) and thus it's lingering there.

Water trapped in the trim area can take a long time to dry out.

Just a theory though.

The true test of a leak is how wet things get under a tank. If there isn't a puddle or trickling down the stand, then I'm thinking it's just condensation.

You could always fill it back up (at least partially) with water and see if any wetness forms under the tank..

bubbles
 

could be condensation,but most likely looks like some sort of adhesive holding your trim on

Yah I am assuming its condensation too since the test water was very cold. The tank has water since last three/four days and have not seen any sort of water leak.

hi raied , yes your fine its nothing to do with silicone its condensation;)

Awesome :D I guessed it was condensation and didn't have any doubt since its concept's tank but still wanted to make sure ;)

could also be the residue from when we put on the vinyl in either case your fine.

cheers buddy

denny