I've actually bought these for nieces and nephews more than once.
I remember those!!!
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Sea Monkey FAQ
When the water level gets low, should I add more Water Purifier?
No, just fill to the correct level with distilled or purified water. The Water Purifier is designed as a one-time formula
Can I use tap water?
Nope. Distilled or filtered water is best.
Why do I have to add Water Purifier before adding the Instant Life eggs?
The Water Purifier is a Top Secret combination of buffers and special ingredients that help Sea-Monkeys hatch and thrive. The actual composition is and known only by Mr. Von Braunhut (the creator) and a few others.
Do I ever need to add salt to their water?
No, everything they need is in their Instant Life packet.
Why is the water cloudy?
You're probably feeding your Sea-Monkeys too much. Temporarily discontinue feeding until the water begins to clear. Don't worry, there's plenty of food and algae for your Sea-Monkeys to thrive on!
Do Sea-Monkeys like the sun? Should I put them in sunlight to stay warm?
Sea-Monkeys are photo-reactive (meaning that they will react to sunlight), and they love the sun. Indirect sunlight is okay but keep them out of direct sunlight, so that their tank doesn't get too hot!
What temperature should the water be?
Room temperatures around 72° F (22° c) should be fine.
Can I color my Sea-Monkeys by adding food coloring to the water?
Uh, no. Adding anything to your tank not specifically designed by Transcience Corp for Sea-Monkeys will probably kill them.