Need help with my pond - The Planted Tank Forum
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post #1 of 7 (permalink) Old 10-25-2013, 08:46 AM Thread Starter
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Need help with my pond

My friend gave me some water hyacinths to put in my pond but what I didn't know was that it was infested with little flea looking creatures I think they are scuds. We'll they are all living in my bead filter by the millions I would guess. Now is this good for my filter or are they destroying the beneficial bacteria. And how do I get rid of them. Thanks
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post #2 of 7 (permalink) Old 10-25-2013, 08:54 AM
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Well that's a good sign that your pond is healthy and they aren't really harming your bb. Not sure what a bead filter but if you want to reduce the number of scuds, add fish.
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post #3 of 7 (permalink) Old 10-26-2013, 04:56 PM
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If you have fish, then I would open all the parts of the filter and let them float in the pond. Put the beads in some sort of mesh that the scuds can find their way out but so you do not lose the beads all over the pond.
If you have sponge or foam pads or other (large) media in the filter system just turn that loose in the pond. The fish will pick their way through it all, and eat whatever they find.

If that will not work then you may have to use some sort of pesticide to kill the scuds. I do not know what kills them that would be safe for the fish and plants, though. MAYBE some sort of worming medicine, sold for dogs and cats???
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post #4 of 7 (permalink) Old 11-11-2013, 07:10 AM Thread Starter
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Thanks Diana. Yeah even when I back wash the filter they don't really come out. I have to open up the filter and remove all the beads to get them all out.
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post #5 of 7 (permalink) Old 11-11-2013, 12:32 PM
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I don't think scuds pose a problem in a pond. People pay for scuds to feed their fish.
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post #6 of 7 (permalink) Old 11-12-2013, 12:48 AM
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How about running the filter on a tub of water, or as small a volume as possible- maybe a 5 gallon bucket? Then loading up that water with something that is toxic to the scuds? But safe for the fish.
For example, would a strong solution of salt kill the scuds? Then rinse the filter media well and put it back on the pond. A minor amount of salt that might stick in there is not a problem to the pond.
Same idea, but hydrogen peroxide? You might have to get the stronger one (not the common 3% that is easily available) Like salt, the last little bit that might remain after a good rinse is not a problem.
Same idea, but a stronger dose of dog and cat wormer? Again, thoroughly rinse until whatever remnant is there is too low to harm the pond.

I would be quite worried about the beneficial bacteria if you did this. I would get a bottle or two of Nitrospira to boost the bacteria population after the treatment.

This has only taken care of them in the filter. If the fish are not eating them in the pond, then they are going to end up right back in the filter pretty fast.
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post #7 of 7 (permalink) Old 11-12-2013, 06:19 PM
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Are the bugs jumping around above or ON the water surface or under? I get what I think are commonly called "snow fleas" around my pond sometimes. They are on the surface in the skimmer or waterfall or on plants etc...but they can be anywhere. These little guys eat decaying material. I first saw them in the winter at our new house on a pile of snow. They are annoying as some made their way into our sun room...but they are not harmful, and are not actually fleas.

Maybe this isn't the same as what you are seeing but throwing it out there.
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