Can polymer sand be used safely in aquariums?

[ReyK]

I have two 2.2lb jars of polymer sand from Brookstone (a store that sells cool toys, gadgets, furniture, etc. if you're unfamiliar) and the packaging says it's non-toxic, but I was wondering if it would be safe for aquarium use since I've had these two jars for over a year and have played with them maybe twice each. The sand is made of 98% sand and 2% polymer, and I googled my question but all I found was inquiries about paver sand and polymeric pool filter sand. Since I already have nearly 4.5lbs of this sand in two colors, blue and pink, and the jars just sit on a shelf in my room, I wondered if I could put the sand to use and incorporate it into an aquarium or if the polymer would hurt the fish somehow.

 

[Brookster123]

My experience with polymeric sand is used in loose lay paver walk ways. It bonds and hardens in the joints when water is added. Not sure we want any of that in the tank, even 2% ?

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[kashif314]

I would say "No".

Even if anything is said to be non toxic never take risk. Only use products which are meant for ur fish and two jars won't do any good for aquarium anyways.