---
product_id: 149849807
title: "Sea-Monkeys Magic Castle"
brand: "sea monkeys"
price: "€ 70.87"
currency: EUR
in_stock: null
reviews_count: 13
category: "Sea Monkeys"
url: https://www.desertcart.de/products/149849807-sea-monkeys-magic-castle
store_origin: DE
region: Germany
---

# 2-year guaranteed lifespan Unique Magic Castle tank Instant hatching dry eggs Sea-Monkeys Magic Castle

**Brand:** sea monkeys
**Price:** € 70.87
**Availability:** ❌ Out of Stock

## Summary

> 🏰 Dive into the world’s only Instant Pets®—where magic meets micro-life!

## Quick Answers

- **What is this?** Sea-Monkeys Magic Castle by sea monkeys
- **How much does it cost?** € 70.87 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/149849807-sea-monkeys-magic-castle)

## Best For

- sea monkeys enthusiasts

## Why This Product

- Trusted sea monkeys brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Science Meets Nostalgia:** A fun, educational hobby that connects you to a timeless classic with a modern twist.
- • **Instant Life, Instant Wonder:** Watch your Sea-Monkeys hatch from cryptobiotic eggs in minutes—science meets magic!
- • **Perfect for Busy Millennials:** Minimal care, no water changes, just add water and feed—ideal for your dynamic lifestyle.
- • **Exclusive Magic Castle Habitat:** A stylish, compact tank designed to showcase your aquatic micro-kingdom with flair.
- • **Sustainable 2-Year Companionship:** Enjoy up to two years of low-maintenance, living pets that evolve and multiply.

## Overview

Sea-Monkeys® Magic Castle is a unique instant pet kit featuring cryptobiotic dry eggs that hatch upon adding water, housed in a stylish plastic tank. Designed for ages 6+, these resilient creatures thrive for up to two years with minimal care, offering a captivating blend of science, nostalgia, and low-maintenance companionship perfect for busy professionals seeking a quirky, living desk companion.

## Description

desertcart.com: Sea-Monkeys® Magic Castle - World's Only Instant Pets® - Ages 6+ (Pack of 1) : Toys & Games

Review: Hard to see, but they're there! - 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.
Review: LLegó bien a Chile, recordar que el modelo puede variar entre el de cristal y el rosa, por suerte tenia el cristal, y me llego el rosa. pura suerte

## Features

- Kit that contains a PMS plastic tank, food packet, water purifier and sea monkey eggs.
- The tank needs to be filled with water to fill line.
- The sea monkey eggs are a dry powder because of cryptobiosis, a state of suspended annimation that occurs naturally in Sea-Monkeys in order to help them survive until ideal conditions appear.
- Sea Monkeys Are Assured To Live (And Rule Their Domain) For 2 Years!

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07T1WGMKQ |
| Best Sellers Rank | #68,706 in Toys & Games ( See Top 100 in Toys & Games ) #41 in Habitat Science Kits |
| Customer Reviews | 4.0 4.0 out of 5 stars (1,443) |
| Item Weight | 1.8 ounces |
| Item model number | DI23230 |
| Manufacturer | Sea Monkey's |
| Manufacturer recommended age | 6 years and up |
| Product Dimensions | 7.44 x 5.5 x 5.5 inches |
| Release date | October 1, 2019 |

## Images

![Sea-Monkeys Magic Castle - Image 1](https://m.media-amazon.com/images/I/61aXdAKTC0L.jpg)
![Sea-Monkeys Magic Castle - Image 2](https://m.media-amazon.com/images/I/71-QEtv3uAL.jpg)
![Sea-Monkeys Magic Castle - Image 3](https://m.media-amazon.com/images/I/71B9Vn96BEL.jpg)
![Sea-Monkeys Magic Castle - Image 4](https://m.media-amazon.com/images/I/71EK3r2UMwL.jpg)
![Sea-Monkeys Magic Castle - Image 5](https://m.media-amazon.com/images/I/81McVHL6EDL.jpg)

## Questions & Answers

**Q: Crystal blue color or pink and blue? Photos show both**
A: Crystal blue.

**Q: How much does it grow?**
A: They end up being about the size of an ant. There are dozens of them thay have grown, and also seems they are breeding.

**Q: Does it last ?**
A: Not really. They do hatch.

**Q: I do not have a table to put this on in front of a window. Can I put these outside on my porch during the day?**
A: No! They will die keep indoors

## Customer Reviews

### ⭐⭐⭐⭐⭐ Hard to see, but they're there!
*by M***A on June 12, 2023*

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.

### ⭐⭐⭐⭐⭐ Review
*by G***L on January 10, 2026*

LLegó bien a Chile, recordar que el modelo puede variar entre el de cristal y el rosa, por suerte tenia el cristal, y me llego el rosa. pura suerte

### ⭐ No sea monkeys hatched. So bummed
*by A***R on January 17, 2026*

My son was so excited to get sea monkeys for his sister for Christmas. We have followed all the instructions and no sea monkeys have hatched. Two very disappointed kids.

## Frequently Bought Together

- Sea-Monkeys® Magic Castle - World's Only Instant Pets® - Ages 6+ (Pack of 1)
- Animagic Aqua Dragons Light-Up Deep Sea Habitat | Build an Aquatic Ecosystem, Watch Prehistoric Pets Hatch & Grow Science Kit | Ages 6+ (Packaging may vary)
- Sea-Monkeys Magiquarium - World's Easiest, No-Mess Pet - Grow Your Own Pet in a Light-Up Aquarium - Ages 6 and Up - One Kit

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-03-13*