GreenWaterFarm Rotifers Brachionus calyciflorus Pallas Eggs Live Fish Food for Hatching and Culture Suitable for Feed Betta Fish

They came fast. Good communication from seller who said they would be running later than Amazon stated. They came safe and thriving. Would order again.

Keeps fry alive until they're old enough to eat something else! I feed these guys to my Poropanchax fry, which are less than 1/4" at hatch. The rotifers eat detritus in the tank (I usually co-culture them with moina, which are too big for the fry). The only way I can see that the rotifers are there is to stop aerating and wait for movement on the surface. These guys are *TINY*, like smaller than the period at the end of a sentence. The rotifers have survived conditions that killed my moina culture, like when I use tap water de-chlorinator or fresh rainwater.

I used spring water and temp controls in a sunny window and rotifers never hatched. Item is not returnable and I am very disappointed. It was a waste of my money and time, sadly.

The media could not be loaded. Worked well for me, I just emptied one capsule into a jar of de chlorinated water with an airstone and left it in front of the same lamp I use to hatch brine shrimp. I noticed them after a couple days and started feeding yeast and spirulina powder each time the water goes clear and it seems to be working well. Only been culturing them for a week and a half so far but there’s been a lot of growth of the culture so I’m happy, excited to try feeding this to some teeny fish fry.

After trying unsuccessfully with 4 capsules in Freshwater I decided to see what would happen if I used a capsule in my Sea Monkey (Brine Shrimp) tank which is Saltwater and suddenly after about a week in the water with my Sea Monkeys I can see hundreds of Rotifers doing little "Dark Souls rolls" and shooting around with a jet like motion similar to squid, seems like either the seller shipped the wrong variety of Rotifers or they can survive in either water type and just needed a little help from the sea monkeys chewing the egg casings, because absolutely nothing happened with the first 4 capsules.Disappointing on one hand since I wasted 4 sixths of the product trying to hatch them in freshwater as the instructions say, but on the other hand now my Sea Monkeys have tiny living food or playmates cleaning their tank.I've now repeated this with the last capsule in another saltwater tank and they're seemingly thriving for the past month now.

These packets definitely contain majority rotifers but over the course of 2 months I've seen other species pop up likes ostracods and copepods. I'm not mad about it because the rotifers are growing faster than the these other species can eat them, but in case you're looking for 100% pure rotifer eggs, you'll probably have more luck finding it on official websites dedicated to biological products.

I thought this product was defective, however after 3rd attempt rotifer eggs start hatching after 5 days and multiplying everyday.

I ordered these guys at the same time as their Fairy Shrimp Thailandensis Eggs, and started both just a day apart. The fairy shrimp have gone through their full life cycle and I am now drying out the eggs, but the Rotifer eggs have done nothing but sit and mold. I finally had to just toss em out. I was happy with the fairy shrimp, but was kinda bummed that these guys didn't work out..