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

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

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.

It took a little over a week. Then tiny particles started moving. you'll need filtered water and a little air. you'll need a bright flashlight to see the tiny life forms. To see them move, let the water settle, stop the pumps and air bubbles. wait until the water stops.

Long story short, if your plan is to order these eggs and get some live food to feed to your fish, this product should work.The hatch rate was pretty terrible, but given how quickly these bugs will reproduce when happy that also shouldn't be too big of an issue.My problem is that both of the critters I ordered are supposed to be filter/algae eaters. What I got hatching in my tank was about 5% daphnia, 5% rotifers (ordered both) and about 90% cyclops. Cyclops are another crustacean, but a predator of the other two.Unless I want to introduce cyclops to my shrimp breeding tanks (I def. do NOT want to do that) I now can't use any of the food/water from this tank in any of the shrimp tanks, since it's chock full of the wrong kind of water bugs now.