Monday, February 23, 2009
Changes
This morning we found that 4 of the 7 fry in the hatching basket had died (including the big guy). 3 more were found dead in the gravel. Tank pH was high today, so we did an additional water change. Students are wondering why so many more fry have died this year than last year. Many questions have come up about the eggs...did they come from the same hatchery? What variables might be affecting the mortality this year?
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3 comments:
i think that the trout seem ok so far. But how many eggs did you get to start?
We estimate there were between 125 and 150 eggs to start.
I am so glad that the breeder basket helped the fish that were dying!!!!!!!! But, why aren't they dying anymore like they used to?
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