shrimp-attack.com

The fact if dwarf shrimps act cannibalistic is discussed controversially. From my observations I can tell you that shrimps can be cannibalistic and actively kill weaker conspecific. I have seen this at my tiger shrimps tanks and reports from CR are also known. Feeding more protein (f.e. frozen artemia) is recommendable then.

Talking about food chains in tanks, I want also add the hint that assassin snails also can attack and kill living dwarf shrimps. They won’t eat planaria unfortunately (as some of the shops advertise). Both behaviors are not common but rare. Nonetheless they are real.

So called ‘breathing bags’ have a great advantage in comparison to normal fish bags: They let oxygene (O2) in and CO2 out. This means that your shrimp will have always enough O2 if you packed the bags the right way. The bags should not touch each other; heat packs also should not be in direct contact to the thin membrane. When using both together please remember that they need air access. Sometimes it is recommendable to make holes for air exchange into the transport box.

Like in other containers, this bags should not be overcharged with shrimps. It is important to leave as less possible air inside the bag when closing it; this reduces water movement which will stress animals. Normally, I close the bag with a gum, but it is also possible to use a bar type heat sealer. The only negative point is that the corners of the bag are not rounded. Rounded corners avoid that shrimps entangle themselves during transportation. One can fold the corners up and fix it with tape; so there are no sharp corners. In summary, breathing bags allow you to ship or transport your shrimps several days.

Kordon, the US manufacturer of the bags offers different sizes: