Duck week can't be stopped. What should I do? Flame thrower? - The Planted Tank Forum
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post #1 of 24 (permalink) Old 09-19-2016, 06:05 AM Thread Starter
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Duck week can't be stopped. What should I do? Flame thrower?

I spend like a week using a net to remove every last duck weed I could find. I went on vacation for a few months and came back to this.




I don't know how this keep happening, is duck weed microscopic at first or something?

There has got to be a way to stop this. I have never seen such a hard to kill pant, this is like the aids of plants.



https://1drv.ms/f/s!AiCUQi_tUaPyjmPHQQtBVDcxaA6A




75 Gallon community planted Aquarium. Pearl Gourami,Golden barbs, zebra, pearl Danios,black neon tetra, glow-light, denson barb, Rasboras, cherry barbs, fancy tail guppies, hachet fish, rosy tetra, flame tetra
29 gallon Gold fish tank(1 large fish)
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Last edited by SpaceLord; 09-29-2016 at 02:05 AM. Reason: adding pics
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post #2 of 24 (permalink) Old 09-19-2016, 07:01 AM
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Duck weed is aquarium herpes. I think you need to dose with lighter fluid and then toss a match in the tank.
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Ill take the snails from the bottom of the tank.
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post #3 of 24 (permalink) Old 09-19-2016, 10:29 AM
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Welcome to the duckweed fanclub. Lol
You can't get rid of it, it's always there.
AlwAys tHerE
a L w a Y s w a T c h I n g
MUA HAHA

I have duckweed in a ten gal and honestly I've given up.
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post #4 of 24 (permalink) Old 09-19-2016, 10:46 AM
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Duckweed does not like strong surface ripple/agitation.IME
Takes a while (week or two),but between the surface ripple, and netting it out,I keep it under control fairly easily.
I like a little bit for many of the young fishes nibble at it.
Just don't like it covering 3/4 of the surface like it WILL if I don't keep after it.
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post #5 of 24 (permalink) Old 09-19-2016, 11:35 AM
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I DID get rid of it! Really. Just regular netting out (once a week) and strong flow, like really strong, nothing left. Even only with netting out you can get rid of it, it's not so hard, really.
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post #6 of 24 (permalink) Old 09-19-2016, 11:54 AM
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What might help is netting out all you can, and keeping it up for awhile. If you see one little duckweed it's got to go. At the same time run a surface skimmer to pull any from the surface. Something like the Eheim Skim 350 may help. However, note that this is a small device and can't cope with masses of duckweed. You'll still need to remove most of it manually.
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post #7 of 24 (permalink) Old 09-19-2016, 12:30 PM
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I just kept netting it, can't remember for how long because it was years ago. My tank is duckweed free now.
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post #8 of 24 (permalink) Old 09-19-2016, 01:12 PM
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I find a little bit of it very pretty, actually. I use a cup and scoop most of it out every water change to manage it.

However when it mixed in with my frogbit in one small tank, that was not nice. I just recently removed all of the frogbit from a 5.5g tank and piece by piece over an hour or two, cleaned it of any duckweed. Then attacked whatever was left in the tank. I have still not put the frogbit back in until I do another removal of any remaining duckweed in the tank. All it needs is one tiny bit to start the explosion all over.
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post #9 of 24 (permalink) Old 09-19-2016, 01:27 PM
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If you've got a wet/dry vac , vacuum it off the surface next time you do a water change . You'll probably get 99% of it first time . net out the remainder . Check under the tank rim if your tank has one , also . Wipe any you find there off with a paper towel.After a doing this for couple of water changes , you should be able to get yourself duckweed free . Working for me so far .
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post #10 of 24 (permalink) Old 09-19-2016, 02:25 PM
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Quote:
Originally Posted by nel View Post
I DID get rid of it! Really. Just regular netting out (once a week) and strong flow, like really strong, nothing left. Even only with netting out you can get rid of it, it's not so hard, really.
A little persistence worked for me, too. Just keep checking/netting everyday for a week or two.
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post #11 of 24 (permalink) Old 09-19-2016, 02:40 PM
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"Just keep skimming....just keep skimming"

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post #12 of 24 (permalink) Old 09-19-2016, 02:44 PM
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Quote:
Originally Posted by someoldguy View Post
If you've got a wet/dry vac , vacuum it off the surface next time you do a water change . You'll probably get 99% of it first time . net out the remainder . Check under the tank rim if your tank has one , also . Wipe any you find there off with a paper towel.After a doing this for couple of water changes , you should be able to get yourself duckweed free . Working for me so far .
The "under the rim" suggestion is spot on. I got quite a bit from there with paper towels as mentioned. Never thought of a wet/dry vac, though. Interesting for maybe a larger tank.

Another poster I read elsewhere used a piece of craft mesh to get under and lift whole bunches of it out. I haven't tried this yet either as the amounts I have are so small with regular maintenance.
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post #13 of 24 (permalink) Old 09-20-2016, 11:29 AM
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i stopped by because of the funny title...but this became memorable!

Quote:
Originally Posted by Kingtriton92 View Post
Duck weed is aquarium herpes. I think you need to dose with lighter fluid and then toss a match in the tank.
thanks to you both! (and i'll just stick to a net )
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post #14 of 24 (permalink) Old 09-20-2016, 12:33 PM
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Small goldfish will do it, though not ideal in most planted tanks.
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post #15 of 24 (permalink) Old 09-20-2016, 01:04 PM
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I've managed to clear duckweed out of several tanks recently, by reducing the number of floating plants and by dipping with a cup and pouring the water through a net. But it takes several repetitions, over the course of two or more weeks, to get all the duckweed.
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