Hi. It really depends on the size of rocks. It can be between 10 smaller ones to 5-8 big ones.
When placing order add a note what size you wish to get and we'll find them for you.
Very attractive, deep black slate stone for building cascades and caves for your fish tank.
Sizes of stones range from 10cm to 30cm pieces.
Rinse well before decorating your tank. It's natural slate, safe for fish.