I have a group of 6 zebra's. All of them about 1 year's old.
When i came back from work today, i found one of them looking like this:

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I checked the water parmatrs- all of them are 0! Ph- 7.7,MS(microsimense)- 1424MS, temp- 28.5 C.
Does any one know what should i do to make the little one get back to his normal size?
I will be greatfull for any quick response.
Uri