This is what I am trying to recreate or rather fix in my bugs tank:
We added some glass flaps to the internal edge of the bugs tank so the lids could sit inside, and rest along the long side of the tank, and essentially be a closed flat lid so the killifish couldn't jump out. The flaps don't go from edge to edge like the one in the photo below. They take up half of the inside edge, right in the middle.
One side is fine, but this week the other slowly started to drop. I got the blame for putting mozzie water pot on the top of the tank but I think it was also to do with there being a lot of silicone and it hadn't cured properly before I put the pots on top.
So I've taken the falling piece out, removed all the silicone from the edge it was stuck to and itself, and cleaned it off with acetone - it's clean and dry.
Can/Should I put a line of silicone around the edge of the flap or should the whole piece be coated like glue before sticking it to the under side of the tank edge again?
Does the piece that the lids rest on need to go right from edge to edge? Comparing mine to the one Greg made, his go edge to edge but there is no silicone gluing it at the ends.
The tank is 25cm wide and the glass is 5mm thick.