Aquarium hardscape

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.

For driftwood used as aquarium hardscape, check whether it sinks on its own and how much tannin it leaches.

How does aquarium hardscape affect water?

Rocks and driftwood can change water hardness or release tannins. Use the water-effect filter to distinguish those effects, then read the material’s entry before choosing. A stone’s color is not enough to identify its chemistry, and a piece of wood tinting the water is a different issue from a rock raising hardness.

What should I compare when choosing aquarium hardscape?

Compare the material, shape and space each piece occupies. Several shapes may belong to the same entry; open the card to inspect them. In the planner you can turn, tilt and resize a piece to match your intended arrangement. Check the remaining swimming and planting space before committing to the layout.

Does aquarium hardscape need preparation?

Read the preparation field rather than applying the same treatment to every material. Entries distinguish soaking, boiling where specified, and whether wood sinks on its own. Follow the information for the actual material you have; a similar-looking piece may behave differently.

How can aquarium hardscape support plants?

Choose plants whose placement allows attachment to stone or wood. Check the plant’s entry as well as the material’s water effects. Build the arrangement by hand in the planner and leave enough space for growth, maintenance and the animals you intend to keep.