Yeah, I get the difference between the bonding area for all-glass vs. plywood-glass. There is an advantage there as far as surface area. Not sure that silicone bonds to anything as strongly as it does to glass, but as long as you have a strong bond, you're good. Pays to keep an eye on the seam as a glass tank ages. I've seen the pics and clips of multiple persons standing on a sheet of tempered glass, bouncing up and down with the glass flexing about 6-8 inches. Amazing, but I always find it painful to watch! Scary, 'cause you never know when you'll pass that stress limit, then "BOOM"!
Yeah Man, I was just trying to let you rest easy and have no concerns about the 1/2'' glass, none whatsoever!
It is my belief that water pressure at 40" deep is NOWHERE near strong enough to blow out 1/2" tempered glass that is cemented to an opening in a strongly built plywood box. It is also my belief that far too many people equate the extreme weight of a very large tank with extreme water pressure. As Commander of this next build, A Successful Build Shan't be Denied!
Now, as far as silicone sticking, Oh My, when the Pond Shield is lightly sanded to a dull surface, that Silicone sticks like Crazy Good, it sticks to sanded Pond Shield better than it sticks to glass, my opinion. I think it even sticks to shiny Pond Shield, better than it sticks to glass. I'm pretty sure Pond Shield is a premier product and when using it, it is fool proof! If ya can't do a nice neat job at first, just do a sloppy job and it STILL won't leak. And then if ya do another one later on, ya can do it neater the second time, and so on.
I dint work today, I started getting sick last night, it came on fast, all achy and headache and flashy bright eyes, flu like stuff. I took a flu pill or whatever and it worked so good! And super fast too, that stuff really takes the miserable edge off and then I could sleep.
Because I had been for the last three days, rinsing all the lava rock and rinsing and sifting the gravel. That work wasn't real difficult but it is heavy work and when I got done yesterday, it coincided with me getting sick and i was all battered and beaten, it FELT like I was!
I did give the Akron a water change, and a few pics too.
I think they are called Pictus or Pimadela catfish, and I have Always been taken by these beautiful and shiny catfish. I think I only have four but I bought six. They almost never come out!
And I also have 11 Giant Danios in Akron and one Pearl Danio sold to me by mistake as a Giant. The Pearl Danio hangs about the Giant Danios but in a very secluded way...
Here is a Lily, I had indoor blooms last year!
And lastly this is one of two Goldfish that I never did catch to move into Chicago... Burnt Toast WILL be living in the Cleveland! Good Evening!