for determining how thick the silicone needed to be or close to factory, I cut a small section of structure seal out from between the side panes and bottom panes and fit zip ties in for me it was these light duty zip ties were perfect fit bought at a ace hardware some people use tooth picks
I will keep adding info here till done except questions.
I used the razor knives and razor/scarpers to cut the inner seals out.
the orange knives are good for cutting out small section for silicone thickness and breaking the side seals. I removed top plastic trim (not easy) i was able to get 1 corner up and used small wire as a saw to cut silicone underneath the trim with out breaking it.
I removed the left small panel first.
then the front panel
then the small right panel while wife held the back panel
then back panel.
since I had not removed the bottom plastic trim yet, I gently and slowly tilted the panels inward to not hurt the bottom trim and break the bottom seal.
Here is a good video link from utube that shows custom aquarium building a tank using the "injection method" there are also alot of other good videos on the utube.
There tanks seem to use a glass dowel to hold the panels in place for silicone.
The most important part is the cleaning of the silicone..... Did i say the most important part is the cleaning of the silicone. all contact edges must be free of silicone. as i learned when you think your done. put on a new razor blade and try again you will likely find more comes off. I started with scrapers then razors then wire brush on drill then wet sand then acetone scrub. the wire brushes for drill are great for the end cleaning. just keep them on the silicone areas as they may scratch the glass
When we assembled the tank since we had only me and my wife it was very important to not move the tank much, 450 pounds of awkwardness. so it was disassembled and reassembled on the stand. I cut and smoothed 3 pieces of 2x4 to the inner dimensions of the bottom plastic trim end middle end and put the plastic trim down around them.. this was so once the tank was completed the trim could just be lifted up to the bottom glass and silicone in place. (pic on 2nd page)
then laid the bottom glass on the 2x4's we put 1 zip tie 3 inches in on each corner as we assembled the tank starting with back glass then right side attaching corner clamps as we went then left side and finally the front glass. then used the long clamps top and bottom sides just snugged.
Now for the bread and butter, some would say this way of doing it leaves room for failure. I don't agree at least not till i see a failure. And tank makers or at least the one above does inner seal at different day than structure seal. But since the silicone is never fully cured before the next move, I think it's fine. so done at own risk.
So with tank assembled and gaps in place we cut the end of the silicone tube and used pliers to smoosh the tip to the tanks gap size. then on the sides we pushed a 1inch length inner seal just inside of the zip ties but not touching the zip ties you want the silicone edges to remain smooth and push enough through in till you see a small amount emerge on the other side of the glass, do not smooth this it should only be a small amount.. do this for every zip tie corner. we also ran 1inch seal for middle of front and back glass. then let sit over night.
the next morning we removed the clamps. tank felt strong for so little silicone. was very surprised. so then we started injecting the inner seal using a mirror in the tank to see the silicone emerging out you will know when it's right this part is very important also. you have the choice the push enough through to make the inner seal as you go or put the inner seal in after. i chose after, removing the zip ties as got i got to them.. once the inner seal was done i used the painters tape to make the lines for the seals then laid the inner seal and let sit for a week.
I know its a quick dirty write up if any questions just ask.