Shrimp Tank Cycling: Step by Step

Cycling a shrimp tank is similar to cycling a regular aquarium, but shrimp are more sensitive to fluctuations in water parameters than most fish. These steps will help you avoid a false start.

Why Cycling is Necessary

In a new aquarium, the bacterial culture that converts ammonia (from waste and food residue) into the much less harmful nitrate is absent. Without this cycle, an ammonia or nitrite spike can occur, which is deadly to shrimp – they are even more sensitive to this than fish.

Step 1: Substrate and Planting

Shrimp feel most comfortable in a densely planted aquarium with many hiding places. Preferably use In-Vitro plants - these are 100% free of pesticides, which can be deadly to shrimp, unlike potted plants which sometimes contain residues. Moss such as Java Moss is a favorite: it offers plenty of hiding places and collects biofilm that young shrimp graze on.

Step 2: Fill the Aquarium and Start the Filter

Fill the aquarium with water and start the filter. Use a sponge filter or a filter with a fine-mesh pre-filter - otherwise, shrimp and especially young shrimp will be sucked into the filter.

Step 3: Let the Cycle Run

Let the aquarium run for at least 3 to 4 weeks before adding shrimp. Test weekly for ammonia, nitrite, and nitrate. Only when ammonia and nitrite are at 0 and a measurable amount of nitrate is present is the tank safe.

Want to speed up this process? A handful of substrate or decor from a healthy, cycled aquarium (your own or a friend's) helps the bacterial culture establish faster.

Step 4: Check Water Parameters

In addition to ammonia, nitrite, and nitrate, two values are especially important for shrimp:

• GH (general hardness): Most Neocaridina species prefer a GH between 6 and 8. Caridina species (like Crystal Red) prefer softer water, with a GH between 4 and 6.
• KH (carbonate hardness): Ensures stable pH. Too low KH causes pH to fluctuate wildly, which shrimp tolerate poorly.

Unsure about your tap water's parameters? Have them tested or ask for advice at the store – we're happy to help you find the species that best suits your water.

Step 5: Add the First Shrimp

Always add shrimp to the new water drop by drop (drip acclimatization), rather than pouring them in all at once. Shrimp are sensitive to sudden changes in water parameters, and too quick a transition can be enough to weaken them.

Start with a small group of 10 to 15 shrimp, such as Fire Red, Orange, or Yellow Shrimp - all three are robust Neocaridina species that can handle some stress during the final phase of cycling.

Common Mistakes

• Adding shrimp too quickly, before the tank is fully cycled.
• Using copper-containing products or medications - this is deadly to shrimp even at low doses.
• A filter without a pre-filter, which can suck in young shrimp.
• Too few hiding places, making shrimp feel unsafe and reproduce less often.

Ready to Start?

Unsure which shrimp species best suits your water parameters and aquarium? Feel free to visit our store in Heinkenszand, or ask your question via chat - we're happy to help you get started.