Few aquascapes are as captivating as a planted shrimp tank, a tiny, busy world of colourful dwarf shrimp grazing across lush moss and stone. They are perfectly suited to compact HDB and condo living, needing only a small tank and gentle equipment. But shrimp are far more sensitive to water quality than most fish, so success in Singapore comes down to understanding your water, choosing the right species and being patient. This guide covers Neocaridina versus Caridina, how PUB tap water fits, remineralising RO, cycling, safe plants and hardscape, gentle filtration, feeding, breeding, heat management and realistic SGD costs.
Key takeaways
- Neocaridina shrimp like cherry shrimp are hardy beginners that thrive in Singapore’s tap water once dechlorinated.
- Caridina shrimp such as crystal and taibee are fussier, needing soft, acidic water made from remineralised RO.
- Stability matters more than perfection; shrimp tolerate steady parameters far better than sudden swings.
- Use a gentle sponge filter, mature the tank fully before adding shrimp, and never add them to a fresh setup.
- A complete shrimp tank can be set up for roughly S$200 to S$500 depending on species and equipment.
Neocaridina versus Caridina: which shrimp to keep
The first decision is which broad group of dwarf shrimp to keep, because it dictates everything about your water. Neocaridina shrimp, of which the red cherry shrimp is the most famous, are tough, adaptable and forgiving, breeding readily in a wide range of conditions. They come in cherry red, yellow, blue, green and more, and they are the right choice for almost every beginner in Singapore.
Caridina shrimp, which include the prized crystal red, crystal black and taibee or tibee lines, are the connoisseur’s choice: stunning, often pricey, and considerably fussier. They demand soft, acidic, low-mineral water that our tap water does not naturally provide, which means working with reverse-osmosis water and remineralising salts. Many keepers start with Neocaridina to learn the ropes, then graduate to Caridina once confident. Crucially, the two groups need such different water that they are best kept in separate tanks.
| Factor | Neocaridina (e.g. cherry) | Caridina (e.g. crystal, taibee) |
|---|---|---|
| Difficulty | Beginner-friendly, hardy | Intermediate to advanced, sensitive |
| Water preference | Neutral to slightly hard, pH ~6.8 – 7.8 | Soft and acidic, pH ~5.5 – 6.8 |
| Suits PUB tap water? | Yes, once dechlorinated | No, needs remineralised RO water |
| Substrate | Inert is fine | Active (buffering) soil to lower pH |
| Breeding | Very easy, prolific | Possible but more demanding |
| Typical price each | S$1 – S$5 | S$5 – S$50+ for higher grades |
Water parameters and how SG tap water fits
For Neocaridina, Singapore’s PUB tap water is a genuine convenience. It sits at a moderate hardness and roughly neutral pH that cherry shrimp and their colour variants are perfectly happy in, so once you neutralise the chlorine or chloramine with a dechlorinator, tap water is ready to use. This makes a cherry shrimp tank one of the most accessible projects in the hobby here, with no special water preparation required.
What shrimp cannot tolerate is instability. Sudden shifts in temperature, pH, hardness or, most dangerously, a spike in ammonia or nitrite from an immature tank will kill them quickly. Aim for steady parameters week to week rather than chasing a textbook ideal, keep nitrate low through regular small water changes, and avoid copper, which is lethal to shrimp and lurks in some fish medications and fertilisers. Always check that any plant fertiliser you dose is labelled shrimp-safe.
Remineralising RO water for Caridina
Caridina shrimp need the soft, acidic, mineral-poor water of their mountain-stream origins, which is the opposite of what comes out of a Singapore tap. The standard approach is to start with reverse-osmosis (RO) water, which is essentially pure with all minerals stripped out, then add a measured dose of a dedicated shrimp remineraliser to bring it to a precise, controlled hardness. RO units are sold at many local fish shops (LFS), or you can buy RO water by the bottle.
Pair remineralised RO with an active substrate, a buffering aqua soil that actively lowers and holds pH in the acidic range Caridina prefer. Measure with a TDS meter and a test kit rather than guessing, since the whole point of going RO is precise control. It is more effort and expense than a cherry shrimp tank, which is exactly why we suggest cutting your teeth on Neocaridina first.
Cycling, stability and a mature tank
Shrimp should only ever go into a fully cycled, mature tank. Cycling grows the beneficial bacteria that turn toxic ammonia into nitrite and then into nitrate; in Singapore’s warm water this typically completes in three to four weeks. But shrimp keepers go a step further and let the tank mature for an extra few weeks beyond cycling, allowing biofilm, microfauna and a light dusting of algae to develop, all of which shrimp graze on constantly.
When the time comes, acclimatise new shrimp very slowly, ideally by drip-acclimatising over an hour or more so they adjust gently to your water. Add them in modest numbers and avoid disturbing the tank too often afterwards. A patient, hands-off approach beats constant fiddling every time with these animals.
Safe plants, hardscape and gentle filtration
Shrimp tanks practically design themselves around easy, hardy plants that double as grazing surfaces. The classics are mosses such as java moss, plus anubias, java fern, bucephalandra and floating plants, all of which are undemanding and provide the surface area shrimp love to pick over. A carpet of moss over driftwood is the signature shrimp-tank aquascape, and our best aquarium plants for Singapore guide lists more options that thrive in our conditions.
For hardscape, use shrimp-safe materials. Driftwood is ideal because it grows biofilm and gently softens water, while inert rocks like lava rock are safe. Avoid limestone or shells in a Caridina tank, as they raise hardness. On equipment, filtration must be gentle: a sponge filter driven by an air pump is the gold standard for shrimp because it cannot suck in babies, provides plenty of grazing surface and creates a soft current. If you prefer a hang-on-back or canister filter, fit a sponge guard over the intake so shrimplets are not lost.
Feeding, breeding and heat management
Dwarf shrimp are grazers that find much of their own food in a mature tank, so feed sparingly. A small amount of dedicated shrimp food, blanched vegetables or the occasional botanical such as an Indian almond leaf two or three times a week is plenty. Overfeeding is a leading cause of crashed shrimp tanks here, as uneaten food fouls the water and triggers ammonia spikes, so remove anything not eaten within a few hours.
Breeding is the joy of Neocaridina keeping. Give them stable water, good food and no predators, and a healthy colony will multiply on its own; you will spot berried females carrying eggs under their tails, and tiny shrimplets soon appear among the moss. Keep shrimp-only or with peaceful, tiny tankmates, because most fish happily eat baby shrimp.
Heat is the quiet threat in Singapore. Shrimp prefer cooler water, and an un-airconditioned HDB flat can push a small tank above the comfortable mid-20s Celsius, stressing shrimp and lowering oxygen. A small clip-on cooling fan blowing across the surface, keeping the tank out of sunlight, and a larger water volume all help buffer the heat. If you are planning a compact build, our nano aquarium aquascape guide covers small-tank techniques, and beginners should start with our aquascaping for beginners guide.
SGD costs for a shrimp tank
A shrimp tank is one of the cheaper aquascaping projects because it stays small and uses simple equipment. The figures below are realistic ranges from local fish shops for a nano shrimp tank, with Caridina setups costing more due to RO water, active substrate and pricier shrimp.
- Tank (10 to 30 litres): S$30 to S$120
- Sponge filter and air pump: S$20 to S$60
- Substrate (inert or active soil): S$25 to S$80
- Plants, moss and hardscape: S$30 to S$100
- Light: S$30 to S$120
- Dechlorinator, test kit, cooling fan, food: S$40 to S$100
- Shrimp (starter colony): S$20 to S$150+ depending on species and grade
All told, a Neocaridina cherry shrimp tank can be up and running for around S$200 to S$350, while a Caridina setup with RO and higher-grade shrimp more realistically lands at S$350 to S$500 or beyond.
This guide focuses on indoor planted shrimp tanks. If you have outdoor space and would rather have a larger garden water feature, see our pond and water feature installation service instead.
Frequently asked questions
Can I keep cherry shrimp in Singapore tap water?
Yes. Neocaridina shrimp like cherry shrimp do well in PUB tap water once you neutralise the chlorine or chloramine with a dechlorinator. Our water’s moderate hardness and roughly neutral pH suit them perfectly, which is why they are the ideal beginner shrimp here.
What is the difference between Neocaridina and Caridina shrimp?
Neocaridina, such as cherry shrimp, are hardy and thrive in neutral, slightly hard water straight from the tap. Caridina, such as crystal and taibee shrimp, need soft, acidic water made from remineralised RO and an active substrate, making them more demanding and better suited to experienced keepers.
Why do my shrimp keep dying?
The usual culprits are an uncycled or immature tank, unstable parameters, ammonia or nitrite spikes, copper contamination from fertilisers or fish medication, overfeeding, or heat stress. Mature the tank fully, drip-acclimatise new shrimp slowly, keep parameters steady and use only shrimp-safe products.
Do I need a chiller for a shrimp tank in Singapore?
Usually not. While shrimp prefer cooler water, most keepers manage our heat with a small surface cooling fan, keeping the tank out of direct sunlight and using a larger water volume for stability. A chiller is only worth it for sensitive Caridina in very warm, un-airconditioned rooms.
How many shrimp can I start with?
For a nano tank of 10 to 30 litres, a starter colony of around 10 to 20 Neocaridina shrimp is sensible. They breed quickly once settled, so a small group soon grows into a thriving colony without overloading your filter from day one.