So about two weeks ago, I decided I wanted a rimless tank. But all I had was the one I bought at the pet store with the black plastic rim around the top. Looked around for some advice, but couldn't be sure of what I read. So I decided to make it a learning experience. And learn I did. But in the interest of learning I took photos as I deconstructed and cleaned the old 2.5g tank. My hope is to help all you all out there looking to do the same, but who aren't confident enough to go through with it. Please learn from my mistake(s). This should be an easy visual DIY guide towards enjoying a rimless top style tank. No chemicals needed! Yay! NOTE: Removing the rim can put your tank at risk for falling apart with the weight and pressure from the shear volume of water. If you are attempting this on a large tank, do your homework. Check silicone work and when in doubt reinforce your corners with bracing.
Razor Knife (with detachable blades or a loose blade as well)
Parent supervision or assistance for the young ones, cheesy I know, but being safe is better than first aid.
^ Start by scoring (scratching) the plastic
from one end to the other. Move slow and careful, you want a good score line to follow
. Continue to score the plastic following the same line until you break through. You may be able to separate the plastic as seen above. Then cut slowly
with very light downward pressure, you don't want to break the glass. ! Warning ! ^^^ DO NOT DO THIS! ^^^
You will break the glass using any object or prying motion! See, it does break: [INSTEAD, DO THIS:
Cut away the front facing and back facing plastic so you can see the glass, as I did partly in the image with the screwdriver. Then use your finger to push from the bottom up in each corner to remove the rim, like so:
The plastic rim should come off relatively easy. If it does not, spend some more time removing the outer plastic with the knife.