Sea-Monkeys Magic Castle

Dont be so quick to throw them away, they're there, you just cant see them. There are a few things you have to keep in mind to raise these. - They need warm temperatures, at least 70 degrees F, too chilly and they will not thrive and even die. - They need oxygen. Either use the little pump thing it came with to blow bubbles in the tank( google to find out how often), or if youre too lazy like me, get a pump with an air stone, and put on the lowest setting. Too much agitation will kill them. - They dont over eat, what kills them is suffocation. If the water is murky, thats too much food, and they will suffocate, especially if you're not blowing bubbles or dont have a bubbler with a pump. I usually feed them when water is clear. I thought mine died off, but then I saw 4 all of a sudden. They started having babies, now I have a ton of them. I just leave them be. I top off the water up to line, thats to keep the salinity level constant. Make sure pump is working and they get enough oxygen. I dont have them by a window, but I do use a grow light. They stay at 76-78 degrees, I keep them by the tv, that keeps them warm. I feed them about every other day, not too much. You have to play it by ear, and depends on how much critters you have in your tank. I got the Magic Castle on April 13, and it is now June 13. So far they are thriving. I got the Sea Monkeys on Mars June 5, so they're just starting to show up. Over all they are easy to take care of. No need for water changes. Don't remove the muck that accumulates at the bottom of their tank, they need that. The dead sea monkey are full of vitamins and minerals, that the live ones need. There's also eggs in there. Dont change the water either, you'll end up throwing away the babies that you can't see. I noticed that a lot of the low reviews were during the winter months. The reason why they either didnt hatch or died off was probably because they were cold. They need warmth, at least 76-80 degrees F. These arent toys, they are living beings with specific needs to live and thrive.

My sea monkey tank has been setup for 3 weeks now and they’re starting to get bigger! Such a fun and easy pet to own. My younger siblings enjoy watching them. Instructions are easy to follow. I’d say it’s a pretty fair price and would make an awesome gift for someone!

90% of them didn’t hatch and the ones that did lived 2 days. 😢 we followed instructions to a T and have had others live over 6 months. Very disappointed

I bought this product (and Sea Monkeys on Mars) to share a bit of fun nostalgia with my high school students. We read an article about fairy shrimp materializing at Burning Man and my students had no idea what sea monkeys were. As a millennial, I wanted to share the excitement of watching these little swimmers materialize from dust that I remembered from my own youth. I bought two sets and set them up with different classes. The sea monkeys hatched within a few days and for the first month or so, there were lots (maybe 15-20?). We could watch them swim around their habitat and even were able to observe them mating and carrying egg sacs (and pooping). My students were amazed. A year later and there are still 4-6 guys swimming around and reproducing. We used distilled water and the purification drops provided, fed them the growth food once a week (there is still half a bag left from the original kit), and aerated the water daily with the pipette provided. We didn’t buy a fancy filter and did not clean the container when debris started to settle at the bottom, though we did continue to add fresh distilled water as it evaporated. Great gift and tons of fun!

I got the kit and like many, didn't have a lot of babies at first. I ended up getting a heated mat along with a controller for the temp and did a lot of research. Keep these babies at 75-81F and pump air with the "aqua leash" a couple times a day for about 15 seconds... and they will hatch. I had a small handful at first. Now I have more than 25! Reverse osmosis water works for adding the water if that's all you can find. Do not get anything with added minerals or salt or anything at all. Just plain distilled or reverse osmosis water. They are pretty much the same thing. Feed the babies only a half of that spoon every three days until fully grown then about once every 5 days and only when the water is clear and they have no "dark line" running through their bodies. That means they are ready to be fed... if you see a line, they have eaten and have food still to digest. Hope this all helps! This kit reminded me of when i was younger growing them for the first time as a teenager. Now as an adult... I have done much better raising them. I have had them for 9 days now and they are getting so much bigger. Remember - keep the babies warm and they will hatch. A little usb heater and small air pump with control valve that has only a few bubbles going a minute without splash will work wonders. :3 Happy hatching!

Mine did great, they almost lasted a year, but I think it got too cold for them in the winter. I would have liked the set to be bigger. Overall. Would purchase from this brand again.

My kids are LOVING these! It was so fun checking every day to see if we could see any. Then we found them and they were super tiny. Then we thought they died for a while because we didn’t see them at all but lo and behold one day there they were growing and swimming all around. We have had them almost 2 months now and the kids have fun watching them grow. Maintenance is super easy as they are only fed once a week. We are not even close to running out of the food it came when either. I love that it came with all that we needed.

eggs never hatched. We have multiple other sea monkey set ups and have had no issues so was super bummed

Recieved in great condition. A month ago, I bought a mini tank of sea monkeys from Korea. By the end of 1st day, I've had many lots of sea monkey sighted without needing to do muh. Unfortunately due to my lack of knowledge (should have used bottled water instead of tap water) only 1 managed to survive. I transferred the surviving one into this new tank i bought (see my video). Thankfully it thrived in this new tank. I bought this sea monkey castle in original purple/blue instead of the clear crystal one hoping to see as many sea monkeys as I did with the Korean tank. Unfortunately, it is seemingly sparse. Nevertheless hope they survive well with less crowding then. I've bought special purple light to help grow some algae naturally as food for the shrimps and waiting to receive a mini air pump which will save me trouble of using manual pump.

I’ve had this tank set up for 4 days now and there are so many babies. I have added a mini aquarium heater and an airline for aeration. I have also placed it under a grow light to help encourage algae growth. If you don’t see babies it could be because the water is too cool. I have my heater set at 26 degrees Celsius and the airline set to very low aeration. My box is from 2024 and many babies have hatched. I still see some unhatched eggs from time to time in the tank. Conditions need to be right for these little guys so it’s hard to say if the other eggs will hatch in the future. I love the crystal tank you can see the sea monkeys swimming around a little better and I think it’s more aestheticly pleasing. I’m so happy to have sea monkeys again. It’s been 40 years. If you live somewhere and can’t have dog or cat or be bothered with a large aquarium this is a great alternative.

For those comments that were 1 star, those people did not wait long enough for them to hatch. It’s not going to be an overnight miracle, people. You have to wait at least a week or two for the eggs to hatch AND you have to make sure they get plenty of oxygen in the tank for them to grow.

My daughter was very excited for some sea monkeys but instead we got wet green eggs, which means they’re spoiled. So I would rate this a 0 if I could.

I finally, after alll these years have sea monkeys! I've waited like 40 years for this moment. I'm basically the happiest girl at the homecoming dance rn. And yes I named them all !