How to Set Up a Shrimp Tank: Complete Beginner Guide
Table of Contents
- Why Keep Shrimp?
- Choosing the Right Tank Size
- Filtration: Sponge Filters Are Non-Negotiable
- Substrate Selection by Species
- Essential Plants for Shrimp Tanks
- Cycling Your Shrimp Tank (6-8 Weeks)
- Water Parameters by Species
- Singapore Water Suitability
- Adding Your First Shrimp
- Feeding Your Shrimp
- Ongoing Maintenance
- Frequently Asked Questions
Why Keep Shrimp?
Freshwater shrimp are some of the most fascinating creatures you can keep in an aquarium. They are endlessly entertaining to watch as they graze on biofilm, pick through moss and interact with one another. Better yet, they are excellent algae cleaners and thrive in compact tanks that suit Singapore’s smaller living spaces.
Whether you live in an HDB flat or a condominium, a well-set-up shrimp tank can fit comfortably on a desk or bookshelf. This shrimp tank setup guide walks you through every step, from choosing your tank to introducing your first colony.
Choosing the Right Tank Size
One of the best things about shrimp keeping is that you do not need a large aquarium. A 20-40 litre tank is perfectly adequate for a thriving colony. Smaller tanks (under 20 litres) are possible but harder to keep stable, especially in Singapore’s warm climate where temperatures already push the upper limits for many species.
Popular choices include the Dennerle Scaper’s Tank (35L and 50L), the UNS 5S (20L) and various rimless tanks from local retailers. A wider, shallower tank is generally better than a tall, narrow one since shrimp spend most of their time on surfaces rather than swimming in the water column.
Filtration: Sponge Filters Are Non-Negotiable
This is the single most important piece of advice in any shrimp tank setup guide: use a sponge filter. Hang-on-back filters and canister filters have intake tubes that will suck in baby shrimp, and you will lose dozens of shrimplets before you even realise what is happening.
A sponge filter serves double duty. It provides biological filtration through the beneficial bacteria that colonise the sponge, and it gives baby shrimp a surface to graze on. An air pump powers the sponge filter, creating gentle water movement that shrimp prefer over strong currents.
If you insist on using a hang-on-back or canister filter, fit the intake with a fine stainless-steel mesh guard. Even then, a supplementary sponge filter is wise insurance.
Substrate Selection by Species
Your substrate choice depends entirely on which shrimp species you plan to keep. This is a critical decision that affects your water chemistry.
| Shrimp Type | Recommended Substrate | Why |
|---|---|---|
| Neocaridina (Cherry, Blue Dream, Yellow) | Inert substrate (gravel, sand, Tropica Substrate) | These shrimp prefer neutral to slightly alkaline water; active substrate would lower pH unnecessarily |
| Caridina (Crystal Red, Taiwan Bee, Shadow Bee) | Active substrate (ADA Amazonia, Controsoil, SL-Aqua) | Active substrates buffer pH down to 5.5-6.5, which Caridina species require |
Aim for a substrate depth of 3-5 centimetres. This provides enough depth for planting whilst avoiding anaerobic pockets that can release harmful gases.
Essential Plants for Shrimp Tanks
Plants are not optional in a shrimp tank. They provide hiding spots, grazing surfaces and help absorb excess nutrients. Two categories are particularly important:
Mosses
Java moss, Christmas moss, flame moss and weeping moss are all excellent choices. Mosses trap microorganisms and biofilm that shrimp feed on constantly. Attach moss to driftwood or stones with fishing line or superglue gel. In Singapore’s warm water (28-32 degrees Celsius), java moss and Christmas moss tend to perform best.
Floating Plants
Salvinia, frogbit and duckweed provide shade, reduce light intensity and absorb nitrates rapidly. Shrimp feel more secure with floating cover above them. The dangling roots also serve as additional grazing surfaces for baby shrimp.
Other good options include Anubias (attach to hardscape), Bucephalandra, water wisteria and Java fern. All of these are low-tech plants that grow well without CO2 injection, which is typical for shrimp tanks.
Cycling Your Shrimp Tank (6-8 Weeks)
Shrimp are far more sensitive to ammonia and nitrite than most fish. A fully cycled tank is absolutely essential before adding any shrimp. Expect the cycling process to take 6-8 weeks for a shrimp tank, longer than the typical 4-6 weeks for a fish tank.
- Set up everything — substrate, filter, hardscape, plants, fill with dechlorinated water
- Add an ammonia source — pure ammonia (dose to 2 ppm) or decaying fish food
- Test regularly — use a liquid test kit (API Master Test Kit is reliable and available locally)
- Wait for the bacteria — ammonia-oxidising bacteria appear first, then nitrite-oxidising bacteria
- Confirm the cycle — when ammonia and nitrite both read 0 ppm within 24 hours of dosing, with nitrate present, you are cycled
If you are using active substrate like ADA Amazonia, it will leach ammonia during the first few weeks. This is actually helpful for cycling but means you should wait even longer before adding shrimp. For a detailed walkthrough, see our guide to cycling a shrimp tank.
Water Parameters by Species
| Parameter | Neocaridina | Caridina (CRS/CBS) | Caridina (Taiwan Bee) |
|---|---|---|---|
| Temperature | 22-28°C | 20-24°C | 20-23°C |
| pH | 6.5-8.0 | 5.8-6.8 | 5.5-6.2 |
| GH | 6-12 | 4-6 | 3-5 |
| KH | 2-8 | 0-2 | 0-1 |
| TDS | 150-300 | 100-180 | 80-150 |
Singapore Water Suitability
Singapore’s tap water, treated by PUB with chloramine, has a few implications for shrimp keepers:
- Neocaridina: Singapore tap water is generally suitable after treatment with a water conditioner that neutralises chloramine (not just chlorine). The pH and GH of local tap water fall within acceptable ranges for Cherry Shrimp and their colour variants. These are the recommended species for beginners in Singapore.
- Caridina: Tap water is not suitable for Crystal Red Shrimp, Taiwan Bees and other Caridina species. You will need a reverse osmosis (RO) system or purchase RO water and remineralise it with Caridina-specific minerals (such as SaltyShrimp GH+) to achieve the soft, acidic conditions these species require.
Ambient room temperature in Singapore (28-32 degrees Celsius) is fine for Neocaridina but too warm for most Caridina. If you plan to keep Caridina, budget for an aquarium chiller or at minimum a fan-based cooling system. For more on Neocaridina care, read our Cherry Shrimp care guide.
Adding Your First Shrimp
Once your tank is fully cycled and parameters are stable, it is time to add shrimp. Start with a group of at least 10-15 individuals. Shrimp are social animals that display more natural behaviour in groups, and a larger starting colony establishes more quickly.
Drip Acclimation Method
- Float the sealed bag in your tank for 15-20 minutes to equalise temperature
- Pour the shrimp and water into a clean container
- Set up airline tubing with a knot or valve to create a slow drip from your tank into the container
- Drip until the water volume has at least tripled (this takes roughly 60-90 minutes)
- Net the shrimp gently into the tank — do not pour the container water in
Drip acclimation is critical for shrimp. They are extremely sensitive to sudden changes in TDS, pH and temperature. Rushing this step is one of the most common causes of shrimp dying within the first 48 hours.
Feeding Your Shrimp
Shrimp are not heavy eaters. In a well-established tank with biofilm and algae, they may need very little supplemental food. Overfeeding is a far greater risk than underfeeding, as uneaten food fouls the water rapidly in a small tank.
- Commercial shrimp food: Glasgarten Bacter AE (promotes biofilm growth), Shrimp King Complete, Borneo Wild
- Blanched vegetables: spinach, zucchini, cucumber — remove after 6-8 hours
- Dried leaves: Indian almond leaves (ketapang), mulberry leaves — these also lower pH slightly and promote biofilm
- Protein: once a week, offer a small amount of snowflake food or bee pollen
Feed every 2-3 days for a new colony. Once the population grows, you can increase frequency. A good rule: if food is not consumed within 2 hours, you are offering too much.
Ongoing Maintenance
Shrimp tanks require consistent but minimal maintenance:
- Weekly: 10-15% water change using dechlorinated, temperature-matched water. For Caridina tanks, use remineralised RO water matched to the exact TDS of the tank.
- Weekly: Test ammonia, nitrite, nitrate, pH, GH and TDS
- Fortnightly: Gently squeeze the sponge filter in old tank water to remove debris (never in tap water)
- Monthly: Trim plants if they are blocking light or flow
- As needed: Top up evaporated water (this concentrates TDS, so use pure RO or distilled water for top-ups)
Stability is more important than perfection. Shrimp tolerate slightly off parameters far better than they tolerate fluctuating ones. Avoid large water changes (anything over 20%) as the sudden shift in TDS and chemistry can trigger failed moults.
Frequently Asked Questions
How many shrimp can I keep in a 20-litre tank?
Start with 10-15 shrimp in a 20-litre tank. A mature, well-maintained tank can support 8-10 shrimp per litre, so a colony of 150-200 is achievable over time. The colony will naturally self-regulate based on available food and space.
Do shrimp need a heater in Singapore?
Neocaridina do not need a heater in Singapore since ambient temperatures of 28-32 degrees Celsius are within their tolerance range. Caridina species, however, need a chiller to bring temperatures below 25 degrees Celsius. A heater is only necessary if your tank is in a heavily air-conditioned room that drops below 22 degrees Celsius at night.
Can I keep shrimp with fish?
Yes, but with caution. Small, peaceful fish like Otocinclus and Pygmy Corydoras are generally safe. Most other fish will eat baby shrimp, which limits colony growth. For the best breeding results, keep a shrimp-only tank. Dense planting and moss provide hiding spots if you do mix species.
Why are my shrimp dying after water changes?
The most common cause in Singapore is untreated chloramine in tap water. PUB uses chloramine, which does not dissipate by sitting overnight like chlorine does. Always use a water conditioner that specifically neutralises chloramine. The second most common cause is a large TDS swing from changing too much water at once.
Ready to Start Your Shrimp Tank?
Setting up a shrimp tank is one of the most rewarding projects in the aquarium hobby. With the right equipment, a properly cycled tank and a little patience, you will have a thriving colony in no time. At Gensou Aquascaping, we have been helping Singapore hobbyists set up beautiful aquariums for over 20 years. Visit us at 5 Everton Park for substrate, plants, hardscape and expert advice on your shrimp tank setup. Get in touch or drop by our studio to get started.
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