Acrylic Tank help needed

[bubbles21476]

So, I have decided to use a sump ilter and my fluval fx5 on my acrylic tank. The top off the tank has a 3/8 piece of acrylic covering in save openings for the fish and overflow. The previous owner had a 1" hole cut (not cleanly) into the acrylic for tubing, however the hole is not big enough for fx5 tubing. Any thoughts on how to increas the diameter of this hole?

 

[Silent Bob]

Hope I can explain this ok. To get a clean hole use a hole saw drill thru a piece of wood say around 3/4" thick. Once you have done that if you have anyway to securely clamp it to the tank you now have a guide for the whole saw to follow.

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[DIDYSIS]

Exactly the right way to do it.

Hope I can explain this ok. To get a clean hole use a hole saw drill thru a piece of wood say around 3/4" thick. Once you have done that if you have anyway to securely clamp it to the tank you now have a guide for the whole saw to follow.

Sent from my SCH-I500 using MonsterAquariaNetwork App