Storing a tank in the garage

[Tyler Bullock]

I have a 90 gallon tank sitting in the garage. It has started getting cold out and was wondering if it is bad to leave it out there until December. It will probably get down to 20 degrees late November into December.

 

[WVNed]

The 20L I am using for a sump was in an unheated outbuilding for years.

 

[TheHarold]

"emergency"?

;Blackeye

A quick search gives me:
ASI Aquarium Silicone Sealant can be applied to surface temperatures from -18°C to +50°C (0°F to +120°F) and after curing, withstands constant operating temperatures from -57°C to +233°C (-70° F to 450°F).

Assuming that standard silicones have a similar temperature tolerance, it probably will be fine. But probably is probably, so take it for what its worth.

 

[DangerDave]

Although my garage does not get below freezing (even when it’s well below freezing outside), my tank, two frag tanks, sump, and two 55 gallon water container are all in my garage. The display is mildly insulated, the remaining tanks are not. There are two 300 watt heaters that keep up with the demand easily. The water tanks (salt and rodi) are not heated.