Avoid the rookie mistakes. Here’s what you actually need to know.
When it comes to aquariums, getting set up properly in the beginning can save you a whole lot of stress (and dead fish) later on. We see it all the time — people rushing into stocking their tank before it’s ready, or buying gear that doesn’t suit their setup. But don’t worry — we’ve got your back.
Here’s your go-to guide for a smooth start.
1. Start With the Right Space
Size matters. No, really. The size of your tank will affect everything from what fish you can keep to how easy it is to maintain. Bigger tanks can actually be more forgiving — more water means more stability. Think about where your tank will live (away from direct sun or heaters) and what size will fit your lifestyle.
Freshwater is the chill cousin while saltwater is the high-maintenance diva who demands perfect conditions and a bigger budget.
2. Gather Equipment
Filters: Your tank’s personal janitor, sucking up fish poop and keeping things sparkly. Get one that matches your tank size, or your water will look like a swamp in no time.
Heater: Tropical fish are basically tiny divas who need their water at a cozy 23–26°C (freshwater) or 24–25.5°C (saltwater).
Lighting: Get aquarium lights to make your fish look Instagram-ready and prevent your plants or coral throwing a photosynthesis tantrum. Set a timer for 8–12 hours.
Water testing kit: Your backstage pass to monitor pH, ammonia, nitrites, and nitrates. Saltwater folks, grab a refractometer to avoid turning your tank into the Dead Sea.
Extras: Thermometer, net, siphon (for water changes), dechlorinator (freshwater), salt mix (saltwater), etc.
3. Hardscape First — Make It Count
Hardscape isn’t just for looks — it’s the backbone of your aquarium. Rocks, substrate, and driftwood aren’t just pretty; they shape your tank’s flow, territory, and hiding spots. Whether you’re building a freshwater jungle or a saltwater reef, we’ve got the goods:
Aquascaping kits, rocks & driftwood
4. Cycle the Aquarium
After filling your aquarium with water you must establish beneficial bacteria to break down ammonia and nitrites (toxic to fish) through the nitrogen cycle. Why? You’re building a bacteria squad to handle fish waste—think of it as hiring tiny janitors to keep the ammonia and nitrites (fish poison) at bay. Test your water, be patient, and remember: you’re building your very own little ecosystem here.
5. Choose Fish That Fit Your Tank and Lifestyle
It’s tempting to go straight for the flashy fish, but hold fire. Consider their full size (not just the cute baby version at the shop), their activity level, and whether they play nice with others. Schooling fish? Aggressive fish? Shy fish? Plan it out – goldfish aren’t betta’s BFFs!
Check out our healthy, carefully sourced livestock here.
6. Plants and Corals – Think Beyond Aesthetics
Plants and corals aren’t just décor — they need the right light, nutrients, and space. Some grow fast, others prefer shade, some are easy-going, others are divas. Research what fits your tank and your level of commitment. (Yes, plants and coral need care too.)
7. Lights – Not Just to Show Off
Lights help bring out colour, yes – but they’re also essential to plant and coral health. Too much, and you’re in algae territory. Too little, and your coral and plants might fade faster than a summer tan.
Get lighting that suits your tank life: Shop lighting
Bonus Tips:
- Research your fish, or you’ll end up with a piranha in a guppy party, It won’t end well.
- Be patient and do not rush the cycle as this can harm your fish.
- Quarantine new fish and give them a VIP isolation tank to avoid a disease outbreak.
Final Thoughts
Building your aquarium isn’t about rushing — it’s about getting the foundations right so you can enjoy the journey. Whether you’re freshwater or saltwater, planted tank or reef showpiece, we’re here to help you do it right.
Need advice? Pop into our Pakuranga Heights store or get in touch — we love helping fellow fish lovers get started the right way.
