WAIT!!!
Before you drain that tank are you certain that it is not the thermostat on your heater clicking?
I thought mine was breaking too, and it turned out to be the heater clicking.
The trim on most tanks does not hold the glass together alone.
The 20 gallon hospital tank I use does not have trim at all anymore and it has held together just fine so you should make sure its not your heater first IMO.
Before you drain that tank are you certain that it is not the thermostat on your heater clicking?
I thought mine was breaking too, and it turned out to be the heater clicking.
The trim on most tanks does not hold the glass together alone.
The 20 gallon hospital tank I use does not have trim at all anymore and it has held together just fine so you should make sure its not your heater first IMO.
Pharaoh knows what he is talking about and he gave you good information. But if you would rather listen to a thirteen year old with an expert opinion, there is no shortage of them.