New 170g

[oceancube]

hey gary, well you sure you got the right measurement, i thought it was 8.53 lb./gal at a S.G. of 1.025. instead of 8.54 lb./gal at a S.G. of 1.025.
, let me know pls!

[Instar]

There is no scientific evidence to prove silicone is a permanent bond yet absorbs and then leaches copper in any measurable amount. The surface exposure and half life in solution just don't support that theory, IMO. If there was a continuous ionic exchange with silicone, it would eventually become porous and fail. The tank I am using, I have been using since 1985 and the silicone does not look like cheese.

Chips in glass, in the middle, are the same things that cause car windshields to crack. Stone chips. I would definitely have the tank checked before using it and after that, supports under the bottom glass and if not replaced or repaired, then some kind of custom cabinet with support along the back where the chips are. I am not sure the older fresh water tanks were designed to withstand what we do to them in a salt tank with all the sand and rocks.