I have been gone for a while, but i have finally found the time to get back into keeping triops. The earlier attempts all failed, and for a while, i couldn't figure out why. Im still not e tirely sure what was killing them, but i did manage to narrow it down to the air pump i was using. Since then, i have been much more successful.
I recently purchased a kessil H380 LED grow light. I bought it specifically for a project im gping to do later because of its ability to grow algae like a beast. Since it also produces UV light, i decided to test it out on my triops. I have long suspected that they benefit from UV, i just never had a lught that i KNOW is producing UV. It worked brilliantly. It worked so well that i bought another LED grow light that produces similar similar spectrums of light.
Here is a pic of both lights. The H380 is on the left, its the little round one: http://imgur.com/gallery/cdKZlXg
I started the next batch of triops with the larger grow light and i barely had any die offs at all. This is a pic of their tank after about a week: http://imgur.com/gallery/HFOULct
At the time i took that last picture, i had not fed them yet. They had been eating all the dead grass/yard waste. When i transferred them to other tanks, i counted 73. I dont know how many actually hatched put, but it was a MUCH higher survival rate than i normally get. The only thing i did different was the light.
The batch i hatched out just before i got the lights had 10 survive out of probably about 200. It did produce one MASSIVE triops though. Here is a short slow motion clip i took of it. The other triops around it are already egg laying adults. http://imgur.com/gallery/kpYibUC
I have often thought about keeping the biggest ones and seeing if i can select for size, but i think environmental factors are more important at this point than genetics are.
Anyway, i also bought some albino triops longicaudatus eggs. I just started them a few days ago, and i am already seeing how spoiled i have gotten in regards to hatch rates. Out of about 400 eggs, i only had about 30 hatch out. Granted, i used old fish tank water to hatch them, but my strain would have hatched out at least a couple hundred. Even with the old tank water.
The good news though is that they seem to survive their first 24 hours better than my strain, as they all seem to still be alive.
"The ecologist is continually having to look at the aspects of nature with which he is unfamiliar and perforce must be an amateur for much of his working time.... professionals may carp at omissions, misconstructions, or even downright errors in these pages. perhaps ultimately they may forgive them for the sake of the overall vision that only the amateur, or the ecologist, blithely sets out to experience."G. Evelyn Hutchinson