Ninja Shrimp

Bred in Adelaide. Posted express every Monday. Guaranteed to arrive alive.

Posted Monday Your order can still go in this box until Sunday 8pm Adelaide time ·
Ninja Shrimp — illustration of the shrimp we sell, side-on on a black background Illustration
This picture is an illustration. We made it to show the colour, the pattern and how solid the colour is. It is not a photo of the shrimp in your box. About our pictures
Ninja Shrimp — illustration of the shrimp we sell, side-on on a black background IllustrationNinja Shrimp

Ninja Shrimp

Caridina serratirostris

An Australian native that changes colour to match your tank, like a chameleon. Cheap, and you will not get tired of watching them.

Tap water is fine Tap water with a conditioner (it takes out the chlorine). Softer water is nice if you can, but not needed. Water & care →

These will not breed in a freshwater tank. Their babies (larvae) need brackish water, which is part salt and part fresh. Buy them to eat algae, not to make more shrimp.

$3.50 each

10 delivered $64.99 · $6.50 each with postage
30 delivered $134.99. $4.50 each. Post is still $29.99

Sold in packs of 10. One box, one postage.

What it is

An Australian native that changes colour to match your tank, like a chameleon. Cheap, and you will not get tired of watching them. Sold under the name Caridina serratirostris.

What water does it need?

These are Caridina (the group that includes crystals, tigers and ninja shrimp) that do not need special water. They are happier in water a bit softer than straight tap water, but tap water will not kill them.

In the table: pH is how acid or alkaline the water is. GH is the minerals in the water. KH is the part that holds pH steady. TDS is everything in the water added up.

pH6.5 – 7.5
GH (hardness)4 – 8 dGH
KH (carbonate)1 – 4 dKH
TDS (total minerals)120 – 200 ppm
Temperature20 – 25 °C

The full story, including cycling your tank, copper and which fish are safe, is on the water & care page. Read it before you order, not after.

Will they breed? Can I mix them?

These will not breed in a freshwater tank. Their babies (larvae) need brackish water, which is part salt and part fresh. Buy them to eat algae, not to make more shrimp. Brackish means partly salty, like a river mouth. Keeping them is easy. Only the babies (larvae) need that salty water, and they will not get it in your tank.

What does it cost delivered?

$3.50 a shrimp. We sell them in packs of 10. One foam express box costs the same to send whether it holds 10 shrimp or thirty. So 10 delivered is $64.99. That is $6.50 each with postage in. The same $29.99 post carries a bigger box too. It drops to $9.99 once your shrimp come to $149. So the more you order, the less each shrimp costs. Everything goes out on Monday, packed that morning. Every shrimp is guaranteed to arrive alive. The guarantee is short, and it says what it does not cover.

See every shrimp we sell →