Fish Fry Effects on Stocking Levels? - Tropical Fish Keeping - Aquarium fish care and resources
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post #1 of 5 Old 03-30-2009, 12:06 AM Thread Starter
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Fish Fry Effects on Stocking Levels?

Hope someone can help on this...

I have a 160 gal. outdoor pond that is doing incredibly well. So much so that everything conceivable is shagging in it (snails, frogs, goldfish, algae eaters, etc.). I have already had a tadpole explosion (manually removed 1000s - only a hundred or so left, I think) and several rounds of hatched goldfish fry that have impacted the pond significantly.

Here is the question/problem at hand:I have about 25-inches of adult goldfish presently in the water and 8-12 fry in the half-inch to 1-inch range (that have survived the tadpole invasion). At what point do I need to be concerned about the stocking levels becoming a problem as the fry grow, as I do not want to lose any of my adult fish?

Thank you in advance for any advise.

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post #2 of 5 Old 03-31-2009, 08:47 PM Thread Starter
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OK - since no one is what I did...

Realized I had a minimum of two dozen fry (some nearly 1.5 inches). Dug out a hole and placed a 35-gal container I was saving for a water garden and turned it into a nursery. There are probably another dozen or so in the large pond, but it will take time to get them out. The new pond also gives me a place to put all of the extra anacharis that is growing.

If any one can give me any advice on maintaining a goldfish nursery, please don't hold back.

Thanks and Peace,
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post #3 of 5 Old 04-15-2009, 02:19 PM
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I think the fry aren't going to affect the pond much, since they're quite small and obviously give off less waste than the full grown ones. If you have a good filter system, then there's nothing to worry about. However, the best way to know is to check your water parameters.

In my opinion, the fry become a concern once they become big enough to be sold. In other words, they're as big as the small goldfish seen at the pet shop.
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post #4 of 5 Old 04-16-2009, 01:16 AM
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You will not have a problem as natural selection will occur. But if you want to try and save and grow them all then you may have to get creative.
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post #5 of 5 Old 04-16-2009, 02:58 AM
willow's Avatar
are you going to sell some to the LFS ?
natural selection and a good filter,should make it ok,
would there be any possibility of making a larger pond ?

when you set up a new tank,hide an extra
sponge or two behind some decor,that way you have
something seeded for you next filter.
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