ghost shrimp?

[karimwassef]

I regularly collect glass shrimp from rockpools in New Zealand, they look to be the same type as in the photo above.

I acclimate them for temperature and salinity relatively quickly (few hours) then chuck them in my tank. Being from the rockpools the salinity swings a lot anyways so they are used to this.

Most last for up to a year, many jump out of my tank even with a lid on. I have no fish that eat ornamental shrimp.

I have seen many with eggs, they lay a sort of foamy mat over some rocks, but fish and invertebrates eat the eggs before they hatch. I'll put some in my fuge in my next build and they should proliferate.

Mine do the same, but there are few predators in the fuge except for a 6 line who's made it home and I can't get him out! Lucky xxxxxx. They still squeeze in sections he can't get to and lay the eggs.

Mine have lasted 18 months now.

As far as hardiness... These little guys are tanks. They can fall on the ground, bounce all over. Plop in the tank and no harm done. Must be because they're so small.

I have an aux sump tank that I use for water changes. I close the valve that connects it to the main sump, purge it, make new saltwater and open the valve.

They sometimes wander in this sump. They can be tricky to catch. In frustration one night, I gave up on the last one, purged the tank and started adding fresh water. I was expecting it to float to the top dead... But it kept swimming in the fresh RODI water with a little of the original SW... So 95% fresh and instantaneous.

He just swam around like nothing was happening.

Tried to catch him again. Failed! And added salt. He avoided the salt, but kept swimming close to the top. Failed to catch him
In the brine... Turned on the mixing pumps (three huge 3000gph beasts) and went away for an hour.

Came back, turned off the pumps and there he was... Still swimming around in the freshly mixed SW.

Built like a very tiny tank. Usually, the only things this hardy are parasites that you want to kill...