How to set up a planted aquarium

1. Decide on low-tech or high-tech

A low-tech planted aquarium uses moderate light and no injected CO₂. A high-tech aquarium adds stronger light, CO₂, and more precise fertilization. Neither is automatically better; choose the level of consistency you can maintain.

2. Place the substrate

Build a gentle slope from front to back so the layout has depth. Keep the front viewing area lower and open. If you use aquasoil, plan for its early nutrient release and follow the product instructions.

3. Build and test the hardscape

Set rocks and wood before filling. Check that every piece is stable and that the layout leaves room for plants and fish to move. Photograph the dry layout so you can recreate it if anything shifts.

4. Add equipment before planting

• Install filtration and heater where flow will reach the full tank.
• Set the light on a timer rather than running it by memory.
• Place the CO₂ diffuser only if your chosen system uses injected CO₂.
• Protect the glass and stand from point pressure.

5. Plant densely from day one

Plant heavily, especially fast-growing stems and easy background plants. Attach rhizome plants such as Anubias and Java fern to rock or wood instead of burying the rhizome.

6. Stabilize the first month

Keep lighting consistent, observe new growth, remove melting leaves, and make regular partial water changes. Test when the tank is cycling and whenever livestock is added or something changes.