Sea-monkeysMagic Castle - World's Only Instant Pets® - Ages 6+ (Pack of 1)

Love it. Brings me back to my childhood. Good price. Good size. Educational. Easy to assemble lol. Still have my colony. They are thriving. It's with the rest of the SeaMonkey tanks. I highly recommend them. It's a wonderful hobby. Plus they are good for apartments. It's not technically a fish tank..so yeah.

The media could not be loaded. 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.

Item is cute and very petite, however eggs never hatched.

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.

Bought for my daught these ones hatched well

We love the sea monkeys. The castle is cute! Not all the eggs have hatched yet though

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!

Everyone knows about these iconic sea monkeys I think this product was somewhat aged due to the fact that the shrimp didn’t hatch