Aquascaping hardscape

Rocks and driftwood as sold for aquascaping: whether they raise KH and GH, leach tannins, sink or float, and what prep they need.

32 entries, grouped by type.

Aquascaping stones 19

The first question about any of them is whether it raises KH and GH — that is what decides if it belongs in a soft-water tank.

Driftwood 13

The first questions are whether it sinks on its own and how much tannin it leaches.