Removing the rim from an aquarium.

Khemul

Sea Bunny
Oct 14, 2010
1,617
1
0
South Florida
Not sure how easy this is going to be to figure out since I suspect this tank is either very old or custom built.

It is 60" x 12" x 20". The glass appears to be just under 1/2" think (probably 4/10"). The bottom wood framing to the tank is pretty nicely done. The top wood rim though is uneven and the cross-beams were obviously not measured correctly (they are held in fine with screws, but there is a gap where they ended up being too short).

I'm debating removing the rim from the tank since it doesn't look all that good and is going to make covering the tank rather difficult. My options then would be to either A.) build a replacement rim or B.) leave the tank rimless or C.) leave it as-is. The tank is filled and setup, so if I did a replacement I'd have to build it first and do a quick drain/replace/refill, but this does seem doable. I built a stand so a rim/canopy combo wouldn't be a problem. I sort of like the idea of the rimless option though and the glass is a lot thicker then I normally see on a tank this size.

Below are some pictures of the tank. Any advice or opinions on what to do with the tank?



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The whole thing setup. The tank is level, the visual difference is actually a curve in the the rim.

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These pics were from before it was cleaned up and resealed. Not sure what the glass pieces were really meant for. Can't see them actually reinforcing much, but they don't hurt anything so they were left alone. There are two of them, one in the front left and one in the back right corner. Also can see the gap in one of the cross-beams in the 2nd pic.
 
From the pictures the glass does look pretty thick....I would worry it wouldn't hold without the frame though...The rimless tanks sold online to my knowledge use special bonding silicone sealant and have thicker glass (which you might or might not have). It would be a risk you would be willing to take, that's a lot of water to clean up, not to mention fish life.
 
From the pictures the glass does look pretty thick....I would worry it wouldn't hold without the frame though...The rimless tanks sold online to my knowledge use special bonding silicone sealant and have thicker glass (which you might or might not have). It would be a risk you would be willing to take, that's a lot of water to clean up, not to mention fish life.

Good point, I hadn't thought of the different type of silicone. I had figured that my resealing job may not be as strong as factory work but even if it was just as strong, probably not nearly as strong as a rimless tank may need.

I had briefly considering siliconing glass (or plexi-glass/arcylic/similar material) to the top as a new rim but I'm not sure how strong that would be compared to wood and screws wrapping around the glass. Will probably just end up building a new wood rim/canopy combo for the tank since I still need to work out lighting. That project is still at least a couple weeks away so I have time to research and weigh options. Guess I could potentially save on the lighting by building kits into a wooden canopy.
 
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