Sand

[jourdy288]

If there is a freshwater lake nearby, sand from there should be OK. Just be sure to remove organinc material, lest you mess up your tank.

 

[MasterDrummer]

I would think that sand from a lake would be unsafe. Especially if it is near a populated area because it will likely be polluted. But you could probably clean it eventually, but I wouldn't want to risk it.

 

[roseK]

no lakes just a river. with icky sand and very nasty water

 

[Viettxboii]

mm well cehck around home depot, etc..
makes me wonder how do you maintain temps in your tanks in an igloo(off topic)

 

[roseK]

cheap heater, it goes so hot it keeps the fishies warm from the icey inside