Magic Water Crystals? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 7 Old 02-28-2012, 07:14 PM Thread Starter
Talking Magic Water Crystals?

You know...water know? those colorful balls that absorb a bunch of water and go from tiny to big?
like this?

Are those OK for fish?
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post #2 of 7 Old 02-28-2012, 07:39 PM
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I would try and find out what is in them first.

I have a feeling they might contain toxic elements not suitable for aquariums.

10g Fry / Hospital / QT tank (as needed)

75g Saltwater Reef, Ocellaris Clownfish, Lyretail Antias (baby), Lemon damsel, Longtail Fairy Wrasse, purple dottyback, snails, crabs and a few LPS corals.

220g Still sitting empty (come on Lottery I need the numbers to come up!)
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post #3 of 7 Old 02-28-2012, 07:43 PM
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Never heard of them before, cant help ypu sorry
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post #4 of 7 Old 02-28-2012, 08:14 PM Thread Starter
It seems to be the same stuff they use to pack the aquatic plants at petsmart, just colorful and round instead of odd shapped...but i'm not sure...
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post #5 of 7 Old 02-29-2012, 06:38 PM
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I wouldnt trust it considering that if it expands with wtare it is probably got some chemicals in it. just dont use
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post #6 of 7 Old 02-29-2012, 11:52 PM
I read that some of them can be toxic and even those that are not say to not put in aquariums it can be harmful to animals and they also mentioned that they float so my guess its not a good idea for a substrate.
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post #7 of 7 Old 03-01-2012, 06:28 PM
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Late to the show but with out knowing exactly what they are I'm thinking they are the same stuff they put in diapers for absorbancy, also the same stuff high school chemistry teachers love to use in class as a demonstration. In which case it is not safe at all, main factor being they are soft which means inhabitants may eat parts of them plus over time they will degrade in a water environment.
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