How to Acclimate Blue Dream Shrimp (UK Shipping)

This is the step-by-step method to avoid the classic Google problem: “my shrimp died after delivery”. Two safe options: the easy cup method or drip acclimation.

📦 After delivery 🦐 Blue Dream / Neocaridina ⏱ 5–7 min read ✅ Beginner proof
Big rule: Don’t rush and don’t dump shipping water into your tank. You’re aiming for a slow, calm transition — temperature + water chemistry.

Before you open the bag (important)

Most deaths happen because people panic and do too much. Do the basics first — then acclimate.

  • Turn lights down/off (reduces stress).
  • Make sure the tank is cycled (new tanks kill shrimp).
  • Have a clean container (jug/tub) ready for acclimation.
  • Have a net or shrimp-safe transfer method (avoid pouring bag water in).
If your tank is new: acclimation won’t save shrimp in an uncycled tank. Start here: Beginner Setup Guide (UK).

Choose a method (both work)

Easy Cup Method Fastest + safest for most beginners
Drip Method Best if your water is very different

Method A: Easy Cup Method (beginner-friendly)

Step 1 — Float the sealed bag (10–20 min)

Keep the bag sealed and float it in the tank so the temperature equalises. Temperature shock is a big reason shrimp die early.

Step 2 — Move shrimp + water into a container

Open the bag and gently pour shrimp and shipping water into a clean container. Keep it somewhere stable (away from cold drafts).

Step 3 — Add tank water gradually (45–60 min total)

Every 5–10 minutes, add a small amount of tank water to the container. Do this slowly until you’ve roughly doubled the water volume.

Step 4 — Transfer shrimp into the tank (no bag water)

Use a net (or shrimp-safe transfer) to move shrimp into the aquarium. Do not pour the acclimation water into your tank.

Method B: Drip Acclimation (simple version)

Drip is great if your UK tap water is very different to the seller’s water. It’s not complicated — you just slow the mixing down.

Step 1 — Float bag (10–20 min)

Same as the cup method: temperature first.

Step 2 — Container + airline drip

Put shrimp and shipping water in a container. Use airline tubing from your tank to the container and tie a loose knot or use a valve so it drips slowly (a steady drip, not a stream).

Step 3 — Drip 60–90 minutes

Let it drip until the water volume in the container is about 2–3x the starting amount. Then net shrimp into the tank (no shipping water added).

Don’t go extreme: super long acclimation in a tiny container can reduce oxygen. If you’re going longer, keep good airflow/oxygen and keep temperature stable.

What NOT to do (this causes most deaths)

  • Don’t dump the bag into your tank.
  • Don’t feed immediately. Wait 24 hours.
  • Don’t do a big water change “to help them”. Stability helps them.
  • Don’t turn lights on bright. Keep it calm the first day.
  • Don’t chase pH. Chasing numbers creates swings.

The first 48 hours (survival plan)

This is where most beginners accidentally kill shrimp by “trying to help”. Here’s the safe approach:

  • Day 1: lights off/low, no feeding, no changes.
  • Day 2: tiny feed (optional), keep routine calm.
  • Week 1: small water changes only if needed (10–15%), match temperature.
  • Watch: grazing, normal movement, hiding is normal at first.
They’re hiding and not moving much — is that normal?
Some hiding is normal after moving tanks. Keep lights low and don’t poke around. If they’re gradually grazing more over the next day, that’s a good sign.
When can I feed them after delivery?
The safest answer is wait 24 hours. They’ve been in a bag and are stressed. Feeding right away can foul water and make things worse.
Why do shrimp die right after I add them?
The top causes are: an uncycled tank, temperature shock, or a big mineral swing. Use slow acclimation, keep changes small, and don’t do big water changes right after adding shrimp.

Next helpful page: Failed Moults & Random Deaths (Fixes).