Tropical Fish Keeping - Aquarium fish care and resources

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-   -   question on drilling glass (

osti 04-29-2012 09:32 PM

question on drilling glass
ok, so I got this idea that I want to drill my tank for my sump filter instead of using my diy pvc overflow. The thing is my tank is setup and running. I've read that some people empty their tank about half way and carefully drill the right size hole they want. I found everything I need on Aquacave website, even a jig to guide the drill while drilling. My question is would it be better to empty the tank into buckets and take all the fish out ? I have all live plants and I was thinking about leaving about 5 to 6 inches of water in for the plants. Any ideas would really help..:roll:

Olympia 04-29-2012 09:41 PM

I would take the fish out, the vibration of the drill on glass could send them into shock.
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Tazman 04-29-2012 09:42 PM

Absolutely do NOT drill the tank with fish in it..the drilling leaves little slivers of glass which may be harmful to your fish.

Glass drilling is best done with the tank completely empty and standing up if you are drilling the side of the tank. Do not try and drill a hole sideways, you need to be going straight down and letting the drill do ALL the work with NO pressure from you AT ALL. Remember as well whatever size bulkhead you choose, you will need to drill a larger hole as specified by the bulkhead size. so a 1" bulkhead for example would not need a 1" hole but a 1 3/4" hole.

Make ABSOLUTELY sure as well the glass is NOT TEMPERED if you are drilling the bottom.

osti 04-29-2012 10:00 PM

ok so I guess it would not be good to drill it unless it is empty. I did not know I would have to lay it down and let the drill do all the work. I was thinking about moving the tank to a different wall and I guess that would be a good time to do it. Thanks for the info....

Tazman 04-29-2012 10:09 PM


It would also be beneficial to have someone spray water on the hole area as you are drilling as the drill bit will get extremely hot.

Another option is to get plumbers putty and create a loop a few cm's bigger than the drill bit, add a small amount of water in it, to act as a reservoir.

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