I've got a tank that I've had in storage for 2+ years now. I'm looking at setting it up again, but it is still covered in duckweed from when I broke it down. If it is just dead and going to rot then I'll wipe the tank down and not worry about it too much. However, I don't want to add water and have the stuff overtake the whole tank again.
If it isn't dead yet is there a good method for cleaning it out and killing the stuff?
How long can duckweed survive being dry?
Started by
Guest_Clayton_*
, Dec 20 2008 05:56 PM
3 replies to this topic
#2
Guest_nativeplanter_*
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Posted 22 December 2008 - 01:02 PM
It is certainly dead, but probably has hundreds of teeny, tiny, itty-bitty seeds.
I would do the following if you reeealy don't want them back:
Boil any gravel you want to reuse.
Rinse out the tank several hundred times
Pray.
I've reused tanks that had duckweed before without it coming back. But if I was really against it, I'd do those things.
On second thought - if this is to be a low light tank, duckweed will not survive.
I would do the following if you reeealy don't want them back:
Boil any gravel you want to reuse.
Rinse out the tank several hundred times
Pray.
I've reused tanks that had duckweed before without it coming back. But if I was really against it, I'd do those things.
On second thought - if this is to be a low light tank, duckweed will not survive.
#3
Guest_BLChristie_*
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Posted 10 January 2009 - 11:08 PM
I've got a tank that I've had in storage for 2+ years now. I'm looking at setting it up again, but it is still covered in duckweed from when I broke it down. If it is just dead and going to rot then I'll wipe the tank down and not worry about it too much. However, I don't want to add water and have the stuff overtake the whole tank again.
If it isn't dead yet is there a good method for cleaning it out and killing the stuff?
I've had duckweed in my nets that has been dried for about a year and I added it all back to an aquarium to see what would happen and sure enough...2 months later I had live duckweed growing in my tank...probably seeds, but still impressive. Given that I will certainly take care to wash my dive gear VERY well after cave diving in FL where many of the springs are covered with the stuff...
...also, I've heard duckweed is the world's smallest vascular plant...anybody know if this is true?
#4
Guest_Newt_*
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Posted 11 January 2009 - 12:22 AM
Yep. Specifically Wolffia (watermeal) species are the smallest; typical duckweed (Lemna species) are much bigger than Wolffia.
Here's a picture of representatives of the two genera. The larger is a Lemna, I believe L. minor, and the smaller is Wolffia brasiliensis. There's also a small frond of mosquitofern, Azolla caroliniana, behind the clump of Lemna in the center of the picture; it looks a bit scaly.
Here's a picture of representatives of the two genera. The larger is a Lemna, I believe L. minor, and the smaller is Wolffia brasiliensis. There's also a small frond of mosquitofern, Azolla caroliniana, behind the clump of Lemna in the center of the picture; it looks a bit scaly.
Edited by Newt, 11 January 2009 - 12:25 AM.
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