Anacharis — what to do


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well, actually you can; you can agitate the surface either by letting your waterfall continue, knowing ice might form in front but water will flow behind, or by aiming a small pump at the surface from below. Either will keep ice from forming as long as the flow is strong enough and/or the winter temps aren't too cold. Another way, which is what I do in addition to keeping the waterfalls running, is to cover the pond with agricultural plastic sheeting. This keeps the wind from accelerating winter evaporation, keeps the water temps up, and assists with no ice formation. Makes spring startup so much better when I don't have to wait for the ice to melt.
Ok thanks. I just learned something. Is the agricultural plastic sheeting see thru. Like you I keep my waterfall flowing all year but the water travels down a 16 foot stream so the flow is not enough to agitate the entire ponds surface. It is enough to keep portions of the stream and front end of the pond open to allow gas exchange when we get freezing temps. In the 6 years the pond has been running only once did everything freeze requiring me to place a heater in to create an opening for gas exchange. In my zone even in the worst winter the pond was ice free by mid March
 
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brokensword

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Ok thanks. I just learned something. Is the agricultural plastic sheeting see thru. Like you I keep my waterfall flowing all year but the water travels down a 16 foot stream so the flow is not enough to agitate the entire ponds surface. It is enough to keep portions of the stream and front end of the pond open to allow gas exchange when we get freezing temps. In the 6 years the pond has been running only once did everything freeze requiring me to place a heater in to create an opening for gas exchange. In my zone even in the worst winter the pond was ice free by mid March
yes, see-thru; it's like making a greenhouse over your pond. But sounds like you don't suffer from ice like I do and if my pond was ice free in mid March, I'd probably not bother with the greenhouse. Though, it does help keep temps up; last spring I was surprised at all the moss that had covered the waterfall rocks, even the portioin where I'd turned it off. Here, we can often get sub freezing temps into mid April, so...

It's an idea to consider, if you have time. I really like the positive effects since I started doing this 3 years ago, even if it takes half a day now to set everything up (it got a lot more intensive when I expanded from 2.4K galllons to 7K),

You could also put a decent sized aerator right over top your anacharis herd; that would keep the ice from making a mess!
 

cas

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if you can keep ice from forming/thin, you shouldn't have any 'mess'.
Are you saying that if you prevent ice from covering the pond, the anacharis won't decompose? I did have an aerator running when my anacharis decomposed, but it only kept a small opening in the pond. Or are you saying that if you can keep the water warm enough (no ice on pond), the anacharis won't decompose?
 

brokensword

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Are you saying that if you prevent ice from covering the pond, the anacharis won't decompose? I did have an aerator running when my anacharis decomposed, but it only kept a small opening in the pond. Or are you saying that if you can keep the water warm enough (no ice on pond), the anacharis won't decompose?
yeppa :) it's only when the ice expands around the plants that they start to mush, so keep the area where the plants are touching the surfade (or close to it) free from heavy ice. And not all types will have issues, but the thin/fragile leaved endings tend to. Anything below the ice will be fine.
 

cas

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Interesting. I think I had another problem. Mine turned to mush all the way to the bottom and there wasn't ice that deep.
 

brokensword

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Interesting. I think I had another problem. Mine turned to mush all the way to the bottom and there wasn't ice that deep.
yeah, if it died all the way down, it wasn't because of the ice. Could be that particular plant couldn't handle such cold water. Double check the variety you had/have. If you get something native to your area, you should have success. I took some hornwort from the big pond down the block and infused my pond with it.

You don't salt your pond, do you? That might have a negative effect.
 
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cas

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No salt, but I wonder if it was the variety. Good point. I need figure out how to get the kind that grows in my area.
 
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No salt, but I wonder if it was the variety. Good point. I need figure out how to get the kind that grows in my area.
I am zone 6b so I would think our weather conditions are similar. If you are interested I can send you some from my pond . Send me a PM. This is small sample of what I pulled out to send to another member
B4080CCE-97A0-458F-B1A4-CB87B6CC8C69.jpeg
 

brokensword

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I am zone 6b so I would think our weather conditions are similar. If you are interested I can send you some from my pond . Send me a PM. This is small sample of what I pulled out to send to another member
View attachment 135486
that looks like something that escaped from a horror movie...
 
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I had an explosive anacharis growth this year . The submerged plant covers a 4x4 x3 ft deep section of the pond . That’s approximately 25% of the pond. In past years the growth was 20% of that. I always left the plant in the pond thru the winter figuring whatever died off I would scope out in early spring.
I had an explosive anacharis growth this year . The submerged plant covers a 4x4 x3 ft deep section of the pond . That’s approximately 25% of the pond. In past years the growth was 20% of that. I always left the plant in the pond thru the winter figuring whatever died off I would scope out in early spring.
But with that much growth I’m concerned if there is a massive die off during the winter it would create problems with DOC. The pond is 3000 gal max depth 3ft. There are 3 koi between 18-24“ and approx 60 gold fish. I leave my pumps running year round and there is a 16 ft stream feeding the pond .
Any thoughts would be appreciated
View attachment 135395

I had an overgrowth of that and ended up with a population explosion the next summer. Lots of places for baby fishies to hide. Thin it out lots.
 

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