Day: March 27, 2018

clatterbane:

Redtail Fairy Shrimp – Day 1

I set some eggs to hatch on the windowsill, with some sun, at around 11 a.m.

This evening, I was surprised to see some whitish specks moving in there, and now this many have hatched after just over 12 hours. An LED lamp has been on over the jar since the daylight started fading.

The eggs came from an eBay seller who claimed there were 30 eggs per packet. It immediately looked like more, and I wish I had only used part of the packet starting out. I was already planning to move the shrimp into a larger container after they grow more, but that’s looking like an even better plan now!

These babies are showing some interesting unexpected behavior, visible here: “The baby shrimps of Redtail Fairy Shrimp swim right after hatching like other fairy shrimps, but sometimes they stop swimming and stay at one spot for 10 seconds to a few minutes in the day they hatched out. After the first day, they keep swimming but slower and calm, which is a very different behavior compared to other fairy shrimps.” (http://www.arizonafairyshrimp.com/redtailfairy.html)

The gently drifting specks were actually what caught my eye when I was setting up the lamp, and then they suddenly started swimming.

Wondered at first if they were OK, but that’s apparently normal behavior for these. Also an indication that they probably are redtails as advertised, from the sound of things.

I wasn’t expecting to be able to see any hatched for at least a couple of days. (And didn’t with the previous fairy shrimp of a different type.) These babies are definitely bigger than the newly hatched brine shrimp.

The sun this morning was what made me decide to go ahead and start the hatching, and it looks like maybe that did help speed things up. As you can see, the air bubbles from filling up the jar haven’t even settled out yet.

Redtail Fairy Shrimp – Day 1

I set some eggs to hatch on the windowsill, with some sun, at around 11 a.m.

This evening, I was surprised to see some whitish specks moving in there, and now this many have hatched after just over 12 hours. An LED lamp has been on over the jar since the daylight started fading.

The eggs came from an eBay seller who claimed there were 30 eggs per packet. It immediately looked like more, and I wish I had only used part of the packet starting out. I was already planning to move the shrimp into a larger container after they grow more, but that’s looking like an even better plan now!

These babies are showing some interesting unexpected behavior, visible here: “The baby shrimps of Redtail Fairy Shrimp swim right after hatching like other fairy shrimps, but sometimes they stop swimming and stay at one spot for 10 seconds to a few minutes in the day they hatched out. After the first day, they keep swimming but slower and calm, which is a very different behavior compared to other fairy shrimps.” (http://www.arizonafairyshrimp.com/redtailfairy.html)