A thriving aquarium is a living centrepiece — calming, beautiful and genuinely rewarding. The secret to success is setting it up the right way and being patient before adding fish. This beginner’s step-by-step guide walks you through it, with everything available on ASM Pet Market.
Plan your tank
Start with two decisions: where the tank will live and what you want to keep. Pick a sturdy, level spot away from direct sunlight and drafts, and choose your fish before you buy, since their needs determine tank size, temperature and décor. Helpfully, bigger tanks are more stable and more forgiving for beginners than tiny bowls.
Essential gear
- Tank & stand — sized for your fish and your space.
- Filter — the heart of water quality and the biological cycle.
- Heater & thermometer — for tropical species.
- Substrate & décor — gravel or sand, plus hides and plants.
- Water conditioner & test kit — to dechlorinate and monitor parameters.
- Light & net — for plants/viewing and safe handling.
Find it all in the fish & aquatics category.
Setting up the tank
Rinse substrate and décor (no soap), add them to the empty tank, then install the filter and heater. Fill with water and add a water conditioner to neutralise chlorine. Turn on the equipment and let everything run so the temperature stabilises. Resist the urge to add fish yet — the most important step comes next.
Cycling the tank
Cycling grows the beneficial bacteria that turn toxic ammonia into nitrite and then far-less-harmful nitrate. It usually takes a few weeks. Use a test kit to track ammonia and nitrite falling to zero and nitrate appearing — that’s your green light. Cycling first protects your future fish from dangerous ammonia spikes.
Adding fish (slowly)
Once cycled, add fish a few at a time, acclimating them gently to the tank’s temperature and water before release. Stock gradually so the biological filter keeps pace, and avoid overcrowding. Patience here keeps water stable and your fish healthy.
Ongoing maintenance
A healthy tank needs simple, regular care: partial water changes, filter upkeep, occasional testing, and not overfeeding (a leading cause of water problems). A steady routine keeps the water clear, the fish happy and the whole system balanced — the payoff for setting it up properly.