Instruct: Classify a given review as either positive or negative.
Query: Better than buying from pet store.

I used this to Reseal a 55 Gallon long tank. I know that buying from the pet store will notallow me to reseal it completely due to the amount of silicone most commercial pet stores offer. Buying this is the same price,if not cheaper, of the overprice smaller tubes pet stores offer. Even after completely sealing my 55 gallon long tank, I still have about only less than 1/4 left. Plus it is easier with a caulking gun as you will need to work fast before it starts curing.This stuff is very clear after curing like brand new silicone from today's fish tanks. But differs due to how well you prep your tanks.