Daphnia Magna

I read the reviews before I bought this product... even though most are bad, I decided to try it anyway. So far I am having a great hatch rate. I just think other people may not be experienced with hatching daphnia. It is best to used aged water with some tannins. After hatching, I am just feeding spirulina powder and fine yeast. After two weeks of hatching half a capsule, my daphnia are having babies! Great fish food for my Scarlet Badis.

Why did you pick this product vs others?: First off, it is not a capsule as they state on the site; it is more of a vial with a cap. A fair amount of eggs get stuck in it, so basicly you have to dump, then put the capsule in the water to get the rest. Not that that matters, as hatching was a no go. Not one hatched. Complete waste of money. Should have bought live. And to make that worse, you can not even get a refund when it does not work! I will never make this mistake again.

Decided to write a review because of how many bad reviews are showing up. This is absolutely a great product. It is a live creature, so the viability of the eggs is dependent on the fertilization and animals themselves. It also heavily depends on how you’re able to culture them after they’re alive. I purchased these little packs months ago, and they are still producing many offspring that I used to feed my axolotl’s. It’s a much cheaper alternative to Brineshrimp given the supplies needed and the time spent. I really just don’t wanna deal with salt water. 😂 Give them a try, but do your research initially and set up a couple different containers with different factors to enhance each container differently. One of them will eventually takeoff. I have a total of five different set ups and out of the 5, 3 have been extremely successful. Remember, they are a living organism. Online you find really easy ways to culture them without anything but water and food in an ugly little container or tub. I have live plants, substrate, and different food types that I offer my cultures. One jar in particular is literally top-tier. It’s my culture that holds both black worms and Daphnia together. Forget the bad reviews and test it out. Just because the eggs don’t hatch doesn’t mean the culture that you have alive won’t reproduce successfully in months to come. They need to get acclimated to your water perimeters and environment you put them in. I now have seed shrimp, copepods, and Moina all thriving in the same jar. 🦀 Peak move is setting up a sponge filter with live floating plants and do not worry about the bubbles, pushing them around. They will be completely fine.

Don’t waste your money. I am a biology professor and hoped to hatch these Daphnia for my class. I set up an aquarium for them with air pump and everything. Ideal conditions. Not a single egg hatches from EITHER vial. Complete waste of money. Do yourself a favor and order a bag of life, hatched specimens from another seller.

Unfortunately, nothing hatched. Not sure what I could have done wrong so I guess...bad batch? I figured after 2 weeks I would see something if there was anything. If I jumped the gun and something happens Ill update. Update: Guess I couldn't see them but after a couple months I now have millions of them. I guess I didnt know exactly what I was looking for... or they were just too small for at least a month. Would be 5star if both caps were able to produce but I guess I got enough out of the 1.

it’s easy to hatch it’s for kids my 10 year-old son hatched it with a filter and some spring water

no dice. put in a filtered, aerated and cycled aquarium..but none of the two capsules ever hatched. I thought surely I'd done everything right, but I guess more people get bad batches of these than they get viable ones. an unfortunate waste of money.

Started my colony in a clear vase (~16oz pasta jar on the left for size comparison) using aged tap water instead of water from my fish tank so I don’t introduce any unnecessary microorganisms into the daphnia colony. I set it up by a window that gets indirect sunlight. I added: 1. Cuttings of houseplants that I know will root in water to act as natural filtration. 2. 1 small ramshorn snail as clean up crew. 3. Bits of torn catappa leaves to promote growth of infusoria which then provides an additional food source for daphnia. 4. Air stone with water pump for aeration. Adjusted the air stone to medium size bubble at a medium to rapid flow. 5. Added about 1/3 of a capsule of the eggs to start a small but steady colony in this small vase to hopefully prevent colony crash. They hatched after several days. Counted about 12-15 of them (there could be more but too tiny to see). Fed them spirulina powder and garbanzo bean powder mixed with water into a soupy consistency. I feed only 1-2 drops of the mixture every other day using an eye dropper. Before feeding, I changed about 1/4-1/3 of the water (will probably change the water less often once the system has matured a bit more). 2 weeks later, they have multiplied quite a bit. Too many to count. Possibly over a hundred or even more. And I still have all the extra eggs I didn’t use in the fridge for backup in case this one crashed in the future. But let’s hope it doesn’t. Overall I’m very happy with the purchase and would recommend it to anyone who is interested to start their own colony. I’ve thoroughly enjoyed the experience. They are fun to observe! Best of all they double as pet and as fish food 🤭.

Hab diese wasserfloh Eier gekauft in der Hoffnung dadurch meine fische immer wieder mit Lebendfutter versorgen zu können. Leider wurde ich stark enttäuscht.schlupfrate ist sehr niedrig. Sowohl drinnen in einem seperaten Aquarium als auch im Garten in einer Regentonne. Da sind im Garten in den anderen Tonnen mehr wild gekommen als bei den Eiern. Und den Preis finde ich zu hoch Kann es nicht empfehlen zu kaufen

Lots of terrible reviews but I've bought these several times over the years and never had an issue. First of all you need dechlorinated water I've used spring water, melted snow, even rainwater they all work. Next you need it to be fairly warm and they need some daylight. Next they need time. Sometimes they hatch in days and sometimes it takes a week or more. DON'T GIVE UP ON THEM TOO SOON!!! When they hatch they are so tiny so you will struggle to see them it is easy to assume it didn't work and dump the water down the drain. They will hatch. I have literally tossed them in a Home Depot bucket of rainwater and scooped them out all summer long with zero effort on my part beyond tossing in some spirulina powder here and there.

I regularly hatch daphnia from other suppliers. This brand has a 0 hatch rate even in a dechlorinated, heated tank. Amazon declined my refund or re-ship request, so a credit card chargeback will have to do.

Not a single hatchling under highly controlled lab conditions.

Good hatch rate. I didn’t do anything fancy, just some tank water with some crushed up cappa leaves. About day 5 I noticed them hatching. I kept the jar near a window with indirect light. I did buy the green powder (same brand) and I put a little bit of that in the jar for feeding every couple days once hatched. I did find it was good to put the crushed leaves in first, and then I dumped the eggs in the centre, that way I didn’t have a huge issue of them sticking to the edge of the jar and getting out of the water. Change the water by 20% every couple days and it’s worked out well so far.