A hardwater aquarium

Vallisneria asiatica var. biwaensis Hygrophila stricta

(Twisted, or corkscrew, vallisneria) (Thai stricta)

Tall plants along the back of the aquarium will begin to grow around the sides to create a frame for the aquascape. Using smaller foreground plants or suitable decor in front of them helps to break up the solid appearance they create.

Hard Water Aquatic Plants

Cryptocoryne bottom and larger-grade toward the top wendtii will provide a good rooting medium.

A layer of nutrient-rich substrate will boost plant growth.

Sagittaria pusilla (Dwarf sagittaria)

Tall plants along the back of the aquarium will begin to grow around the sides to create a frame for the aquascape. Using smaller foreground plants or suitable decor in front of them helps to break up the solid appearance they create.

Tank dimensions

Depending on where you live, your water may be hard and alkaline (high pH). Although it is possible to remove hardness and soften water with proprietary chemicals and filtration systems, it can be costly and time consuming. Most plants do best in medium-soft water and although many will acclimatize to harder water for short periods, in the long-term, hard water will damage them and adversely affect their growth. However, there are hardwater areas in the wild where plants thrive, and the importance of soft water in planted aquariums is debatable as far as these species are concerned. A few plants survive notably better in harder water; a typical example is elodea or pondweed (Egeria densa). Adding C02 in hardwater conditions is an excellent idea, as it will slightly acidify the water and compensate for the drop in available nutrients (see page 67).

Vallisneria asiatica var. biwaensis Hygrophila stricta

(Twisted, or corkscrew, vallisneria) (Thai stricta)

Cryptocoryne bottom and larger-grade toward the top wendtii will provide a good rooting medium.

A layer of nutrient-rich substrate will boost plant growth.

Sagittaria pusilla (Dwarf sagittaria)

Cardamine lyrata Cabomba caroliniana

(Chinese ivy) (Green cabomba)

Vallisneria Asiatica
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