How long would aquarium silicone last outdoors in full sun?

[BadGaskets]

I have spare but older 75 gallon I'm tempted to set up for live food. Old big tanks like this are fairly easy to get in my area right now. Probably going to grow moina in it since I'm in a hot climate.

Assuming I pick a full sun area, will the suns UV wreck the silicone too quickly for this to be a decent idea?

 

[Fishyboy🐟🐟🐟]

Silicon will probably be fine for a long time, it might turn yellow though, may last shorter than usual but should be fine

 

[Backfromthedead]

It will eventually degrade from UV exposure, but expansion/contraction from temperature swings will be the more pressing issue imo, opening up the seams gradually until they are no longer watertight.