Are these plastic crystals safe?

[optom]

Im a bit unsure because they are from Hong Kong and the compay sells electronics.

I am new to fish owning and woud like to decorate the tank. If they are plastic, will they hurt my fish at all?

http://cgi.ebay.co.uk/Aquarium-Tank...9?pt=UK_Pet_Supplies_Fish&hash=item4aa47b3361

 

[corrado33]

Meh, plastic is "usually" ok, but I wouldn't use those things anyway. They look sharp as heck. Plus some plastics can leach things over time I think I might have read somewhere. They have all types of colored aquarium gravel that you'd be better off going with.

 

[optom]

The plastics don't appear to be painted, so will that be ok? That's really mt main concern...
I always thought only painted plastics could leech compounds into the water and hurt the fish?

Any input is grateful. Thanks in advance

 

[herp_mommy]

It says they're glass crystal. I wouldn't use them because your fish could cut and injure themselves

 

[MarkA123]

Yeah that would just slice through their fins. You could find some really nice marbles designed for aquariums I've used some they were polished marbles/stones that look similar to those. I just wouldn't take the chance.

 

[mgamer20o0]

It says they're glass crystal. I wouldn't use them because your fish could cut and injure themselves

if you look down it says its plastic but its still the same. they look sharp. i wouldnt use them.