I
Iain L
Guest
The cheapest stones are available at rivers or ponds. They are free which is better than cheap, it's where the ones that shops sell come from originally. Decorative stones are a big con.
Most of the decorative stones aren't even safe to use, things like marble are toxic and give off arsenic into your fishes home.
Most of the decorative stones aren't even safe to use, things like marble are toxic and give off arsenic into your fishes home.