Quick answer
Attach the glass cup to the tank wall with the suction cups, fill it with substrate or water, then place plants, food, or let fish use it as a resting spot.
Choosing the right placement
Position the cup where you want plants to stay near the surface for better light exposure. Avoid direct outflow from filters, which can disturb lightweight substrate or floating plants. The cup also works well in a low-flow corner for a feeding station.
Substrate or not?
For plant growth, add a thin layer of aquarium soil or gravel to anchor roots. If using the cup as a feeding dish or resting spot, skip the substrate to keep it clean. Without substrate, the cup is easier to remove and rinse.
Step-by-step setup
- Clean the glass cup and suction cups: Rinse the cup and suction cups with warm water to remove dust or residues. Avoid soap, which can leave harmful film for fish. Soap residue can harm aquatic life; rinse thoroughly with water only.
- Attach the suction cups to the cup holder: Press each suction cup firmly into the slots on the back of the glass cup. Wet the suction cups first for a better seal against the tank wall. Wetting the suction cups helps them grip glass more reliably.
- Position the cup on the tank wall: Choose a spot near the water surface for plants or in a calm area for feeding. Press the suction cups firmly against the glass, then slide the cup into place. Check that the cup is level; an uneven cup may tip or spill substrate.
- Add substrate and plants (optional): If growing plants, add a thin layer of aquarium soil or gravel (about 1 cm deep) to hold roots. Insert stem plants or moss gently to avoid uprooting. Use fine tweezers to place plants without disturbing the substrate layer.
- Fill with tank water: Slowly pour tank water into the cup to avoid clouding the substrate. For a feeding station, just add a small amount of food. Pour water against the cup wall, not directly onto substrate, to keep it in place.
- Monitor and maintain: Check the cup weekly for algae or debris. Rinse the cup during water changes if used as a feeder. For planted cups, trim overgrowth to keep the cup tidy. Algae grows faster in cups near the light; clean the glass every two weeks.
Product facts
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Aquarium Glass Aquatic Plant Cup Pot Holder 2-Pack: Pack of 2 glass cup holders, each with 2 suction cups, pot size 6 x 5.5 cm (2" x 2.4"). The compact size fits small to medium tanks and the dual suction cups provide stable attachment even against moderate water flow.
Aquarium Glass Aquatic Plant Cup Pot Holder 2-Pack
