Is an Extra Tank Worth it?

[ItalCanadaReefer]

I am starting my first reef tank (65 gallons) and a friend of mine offered to give me a 20 gallon tank. However, I am wondering whether it can come in handy and if there is any use to it. I honestly will not be quarantining my fish (I believe that I do not yet have the right skillset/knowledge to effectively do so). With that said would it be useful for anything else? Thanks

 

[BaysEndReef]

Food for thought: I have multiple tanks to put duplicate frags in case one tank crashes and I lose something.

 

[Uncle99]

I am starting my first reef tank (65 gallons) and a friend of mine offered to give me a 20 gallon tank. However, I am wondering whether it can come in handy and if there is any use to it. I honestly will not be quarantining my fish (I believe that I do not yet have the right skillset/knowledge to effectively do so). With that said would it be useful for anything else? Thanks

It will come in handy