Silica sand content help please
Evening All ( well it is here )
I'm currently looking round trying to find substrate for my Bolivian ram / cory tank which is currently 5mm gravel .
I can collect river sand as our rivers here in NZ are very clean esp in the head waters ?
Off my local beach , I have a good mate that has had it in his Pleco tank for about 5yr with no issue ?
Or my idea was white silica sand but the only one i can get here has a make up of :
Typical Chemical Analysis:
Aluminium Oxide 0.16%
Ferric Oxide 0.07%
Calcium Oxide 0.10%
Sodium Oxide 0.02% Potasium Oxide 0.10%
Now I'm no science nut so I'm not sure if it is o.k to use ?
Any input would be appreciated.
P.S i can track down pool filter sand as most pool suppliers here are moving to a glass version