Can't go wrong with PFS, just make sure you rinse it like others have suggested. Mine is pretty white in color...but I like it a lot.
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Black beauty sand is great too if you're looking for cheap black sand. I got 50 pounds for like 5 bucks
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look at quikrete all purpose sand.Its got a natural brown color and is not too fine.

Don't know how you lost your fish other then not cleaning the pool filter sand or having a break out of ammonia or something with your tank. I have it in three tanks and it's been in there for almost a year and never had a problem with it and I know a lot of people that use it and have not lost a single fish it's good sand to use easy to clean the tank and looks good too
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I honestly don't know what went wrong either. I rinsed the crap out of it... and my fish where all fine before adding the sand.. ( IE 2yrs+ most of them.. so they where not young, or unhealthy ect..) I will note my fire eels died first.. gills where shredded to the point the fish where "throwing up" bloody tissue, and bleeding from their gills visably... Ammonia poisoning doesn't do that. I would also note I DID use the Quikrete... The only thing I can think of is somehow at the home store some chemicals or something got into it that lots of rinsing wouldn't get rid of?.. I used 5 gallon buckets.. and rinsed it until clear.. only adding a few inches at a time... took me over an hour of rinsing iir.
was the most traumatic thing I went threw as a fish owner in 20 yrs.
I'm not saying not to use sand. I just giving my honest experiance with it.. IMO the few extra dollars for fine quarry rock for me is worth every penny. There are no gurantees. so anyone saying PFS is 100% A-OK is lying.