Aquascaping is the art of designing a planted aquarium so that it looks like a slice of underwater nature rather than a fish tank with a few plastic ornaments. It has a devoted following in Singapore, where a glass box of lush green plants, driftwood and gentle livestock makes a calming centrepiece in even a compact HDB flat or condo. This beginner’s guide walks through the popular styles, the gear you actually need, how to handle our PUB tap water, cycling your tank, easy plants and fish, and realistic SGD starter costs so you can begin with confidence.
Key takeaways
- A complete beginner planted-tank setup in Singapore typically costs S$200 to S$600 depending on tank size and whether you add CO2.
- The core kit is a tank, light, filter and substrate; CO2 is optional and best left until you are comfortable.
- PUB tap water is treated with chlorine or chloramine, so always use a dechlorinator before adding water to your tank.
- Never skip cycling: run the tank for a few weeks to build beneficial bacteria before adding fish.
- Start with hardy plants and fish, keep it small for HDB or condo living, and buy from local fish shops (LFS) who can advise on what suits your water.
Popular aquascaping styles
Before buying anything, it helps to picture the look you are going for, because the style shapes the hardscape, plants and even tank shape you choose. Most beginners gravitate towards one of four classic aquascaping styles, and there is no wrong answer; the best one is whichever you find yourself staring at happily.
- Nature style aims to recreate natural landscapes, with driftwood, rocks and flowing plant groupings inspired by forests, hills or riverbanks. It is the most popular starting point.
- Iwagumi is a minimalist rock-only layout, usually an odd number of carefully placed stones over a low carpet of grass-like plants. It looks simple but demands patience and good plant care.
- Dutch style skips hardscape and focuses on dense, colourful rows of stem plants arranged like an underwater flower bed, rewarding green-fingered hobbyists.
- Jungle style is the most forgiving, with lush, wild, slightly untamed growth that hides equipment and tolerates a relaxed trimming schedule, ideal for busy beginners.
If you are new, nature or jungle styles are the kindest to learn on, since they hide small mistakes and do not depend on a flawless carpet of difficult plants.
Essential gear: tank, light, filter, substrate
You can spend a fortune on aquascaping, but the genuine essentials are short. A beginner needs a tank, a light, a filter and a planted substrate, plus a few small extras. Everything else, including pressurised CO2, can wait until you know you enjoy the hobby.
- Tank: a rimless glass nano tank of around 20 to 45 litres is ideal for an HDB or condo, big enough to stay stable but small enough to fit on a sideboard. Larger water volumes are actually more forgiving for beginners.
- Light: a basic LED aquarium light sized to your tank drives plant growth. Run it on a timer for a consistent six to eight hours a day to limit algae.
- Filter: a hang-on-back or small canister filter keeps water clear and houses the beneficial bacteria your tank depends on. Aim for gentle flow so plants and fish are not blasted around.
- Substrate: an aquatic soil or planted substrate feeds root-feeding plants and helps anchor them, unlike plain gravel. This is one place worth spending on from the start.
Useful extras include a dechlorinator, a thermometer, a small net, an algae scraper and liquid fertiliser for the water column. Many local fish shops sell sensible starter bundles that cover most of this, which can be cheaper than buying piecemeal.
Do you need CO2?
Pressurised CO2 injection supercharges plant growth and brings out vivid colours and dense carpets, but it adds cost and complexity that most beginners do not need on day one. Plenty of beautiful tanks run with no added CO2 at all, simply by choosing low-tech plants and accepting slower, more relaxed growth. A liquid carbon supplement is a gentler middle ground, though it is optional too.
The sensible path is to start without CO2, learn how your plants and water behave, and only add a CO2 system later if you find yourself wanting faster growth or trickier carpeting plants. Going CO2-free from the outset keeps your first setup affordable and far less fiddly.
Working with Singapore tap water
Singapore’s PUB tap water is clean, safe drinking water, but that is precisely the problem for an aquarium: it is treated with chlorine or chloramine to keep it safe for us, and those same chemicals are harmful to fish and to the beneficial bacteria in your filter. The fix is simple and non-negotiable. Always add a dechlorinator (water conditioner) to fresh tap water before it goes into the tank, following the dose on the bottle. A conditioner that neutralises both chlorine and chloramine is the safest choice.
The good news is that our tap water is otherwise well suited to a wide range of common aquarium plants and fish, so most beginners do not need to chase exotic water parameters. Let conditioned water sit to reach room temperature before a water change, and you will avoid shocking your livestock. If you ever want to fine-tune hardness for fussier species, a local fish shop can advise, but it is rarely necessary to get started.
Cycling your tank
The single most common beginner mistake is adding fish on the first day. A new tank has no beneficial bacteria, so fish waste quickly builds toxic ammonia with nothing to break it down. Cycling is the process of growing that bacterial colony first, and it usually takes a few weeks. During cycling, the bacteria learn to convert ammonia to nitrite and then to far less harmful nitrate, which you remove with regular water changes.
The fishless method is best: set up the tank with plants and filter running, add a source of ammonia, and use a basic test kit to watch ammonia and nitrite rise and then fall back to zero. Once both read zero and you see nitrate, the tank is cycled and ready for livestock. Planting heavily from the start and adding a bottled bacteria supplement can speed things along. Patience here saves you dead fish and frustration later.
Beginner-friendly plants and livestock
Start with hardy, low-light plants that forgive mistakes and do not demand CO2. Java fern, Anubias, Java moss, Cryptocoryne and Vallisneria are all famously tough, growing well in modest light and tolerating beginner errors. Java fern and Anubias are especially easy because they attach to driftwood or rock rather than needing to be planted in substrate, so they suit any layout.
For livestock, wait until the tank is fully cycled, then add slowly. Small, peaceful fish such as ember tetras, harlequin rasboras and guppies do well in a planted nano tank, while cherry shrimp and small snails make excellent clean-up crew that graze algae. Stock lightly and in stages so your filter bacteria can keep pace. A good local fish shop will steer you towards species that suit your tank size and our water, and away from anything that grows too large or aggressive for a small flat-friendly setup.
Realistic starter costs and space for HDB or condo
A first planted tank does not need to be expensive. As a rough guide, a small nano setup with tank, light, filter, substrate and basic extras lands around S$200 to S$350, while a mid-sized tank or a kit with better lighting and the option to add CO2 later runs roughly S$350 to S$600. Adding a full pressurised CO2 system on top typically adds a few hundred dollars more, which is why most beginners leave it out at first. These are general bands; prices vary between shops and seasonal promotions.
Space is rarely a barrier in Singapore. A nano tank fits neatly on a sideboard, study desk or kitchen counter in an HDB flat or condo, and a sturdy shelf or cabinet that can take the weight of a full tank is all the support you need. Keep it out of direct sunlight to limit algae, and near a power point for the light and filter. Start small, enjoy the process, and scale up only once you are hooked.
Ready to go deeper? Browse our guides to the best aquarium plants for Singapore and a step-by-step planted aquarium setup in Singapore. And if you would rather have an outdoor water feature than an indoor tank, our pond and water feature installation service can design and build one for your garden or balcony.
Frequently asked questions
How much does it cost to start aquascaping in Singapore?
A small beginner planted tank with tank, light, filter, substrate and basic extras typically costs around S$200 to S$350. A larger tank or one set up to add CO2 later runs roughly S$350 to S$600. Adding a full CO2 system adds a few hundred dollars more, which is why most beginners skip it at first.
Can I use Singapore tap water in my aquarium?
Yes, but you must treat it first. PUB tap water contains chlorine or chloramine, which harms fish and beneficial bacteria. Add a dechlorinator (water conditioner) that neutralises both before every water change, and our tap water then suits most common aquarium plants and fish.
Do I need CO2 for a planted aquarium?
No. Many attractive tanks run with no added CO2 by using hardy, low-light plants and accepting slower growth. Start CO2-free to keep things affordable and simple, then add a system later only if you want faster growth or trickier carpeting plants.
How long should I cycle a new tank before adding fish?
Usually a few weeks. Run the tank with plants and filter, add an ammonia source, and test the water until ammonia and nitrite both read zero and you see nitrate. Only then is the tank cycled and safe for fish. Planting heavily and using bottled bacteria can speed it up.
What are the easiest plants and fish for a beginner in Singapore?
Java fern, Anubias, Java moss, Cryptocoryne and Vallisneria are all hardy, low-light plants that forgive mistakes. For livestock, peaceful nano fish like ember tetras, harlequin rasboras and guppies, plus cherry shrimp as a clean-up crew, are reliable choices once the tank is cycled.