tbunting Posted September 25, 2010 Report Share Posted September 25, 2010 hi there i dont know if this is in the right section but im wanting to know if there is any fish out there that will eat duck weed Quote Link to comment Share on other sites More sharing options...
ryanjury Posted September 25, 2010 Report Share Posted September 25, 2010 My africans eat it Quote Link to comment Share on other sites More sharing options...
Bilbo Posted September 25, 2010 Report Share Posted September 25, 2010 I think tinfoil barbs eat it as well. Quote Link to comment Share on other sites More sharing options...
supasi Posted September 25, 2010 Report Share Posted September 25, 2010 Lots of fish eat it, but not in quantities to rid your tank of it though. Bst to net as much as you can and increase surface agitation. Quote Link to comment Share on other sites More sharing options...
Zayne Posted September 25, 2010 Report Share Posted September 25, 2010 i find that my fish ate it but by the next week the top of the tank was covered again, they just cant eat enough. Quote Link to comment Share on other sites More sharing options...
jim r Posted September 25, 2010 Report Share Posted September 25, 2010 DUCKWEED :evil: ! it drives me up the wall!!! A net is the only solution, every day with vigilante attitude is the only answer. If it floats no matter how small it may look treat it as duckweed. Believe me. Quote Link to comment Share on other sites More sharing options...
tbunting Posted September 25, 2010 Author Report Share Posted September 25, 2010 Thanks guys for all of ur advice it sounds like I need to Lern how to be patient Quote Link to comment Share on other sites More sharing options...
ryanjury Posted September 25, 2010 Report Share Posted September 25, 2010 If you add a really big HOB filter it blows it all around the tank and eventually gets it all sucked into filters that coupled with fish that eat it will get rid of it eventually. It is amazing how people can sell this stuff! lol Quote Link to comment Share on other sites More sharing options...
malevolentsparkle Posted September 25, 2010 Report Share Posted September 25, 2010 why is it not illegal, its not a native is it? Quote Link to comment Share on other sites More sharing options...
Bilbo Posted September 25, 2010 Report Share Posted September 25, 2010 why is it not illegal, its not a native is it? I dont know where it comes from but every ditch and creek round here is full of it and every dent in the ground is full of water at the moment so the stuff is everywhere. I saw an auction add for it recently and thought if someone can sell that then I might list an auction for Onehunga weed. Quote Link to comment Share on other sites More sharing options...
Sophia Posted September 25, 2010 Report Share Posted September 25, 2010 duckweed is good for fry to hide in and I think it adds a natural look to the right kind of tank. When I was looking for it the only free stuff I could find, without knowing every creek and backwater in auckland, was western springs and I got about a 10cm square blob worth. I did manage to buy some later but it was hard to find. Now it's growing really well and I'm starting to net out what is not needed. Bilbo I think you should try auctioning onehunga weed, market it as a deterrant against people walking on the lawn :evil: Quote Link to comment Share on other sites More sharing options...
Stella Posted September 27, 2010 Report Share Posted September 27, 2010 why is it not illegal, its not a native is it? It is native, well some species are. IIRC the ones with one root per platelet are native. I love it. Really handy as surface cover for lurking fish, and dims the light a bit. Admittedly removing it is a pain if you have other plants. I have some azolla in my tanks now - a freefloating fern with symbiotic cyanobacteria! Really cute but a bit more temperamental. Quote Link to comment Share on other sites More sharing options...
Insect Direct Posted September 27, 2010 Report Share Posted September 27, 2010 a weed is really only a plant growing where it is unwanted. ie duckweed in some peoples fish tanks depending on your preference lol I suspect it does alot of good for some of our waterways. all plants have their uses, duckweed is great stuff imo, sucks up unwanted nutrients, great food source for the larger fish such as goldfish etc. Turtles love it, its even used in sewage plants overseas. even if your fish appear not to eat it, they often will be grazing on the roots, even platties and guppies will do just that. sometimes by cutting back on other foods will help encourage the fish to eat it all. Quote Link to comment Share on other sites More sharing options...
Insect Direct Posted September 27, 2010 Report Share Posted September 27, 2010 I have some azolla in my tanks now - a freefloating fern with symbiotic cyanobacteria! Really cute but a bit more temperamental. is it growing well? i never had much luck growing azolla indoors. I mainly tried in tropical tanks though, which i suspect it doesnt like much... Quote Link to comment Share on other sites More sharing options...
Stella Posted September 27, 2010 Report Share Posted September 27, 2010 The azolla is doing pretty well in one tank, and ok in two others. Mine seems to like: high light levels still water low humidity (I think. Azolla in the tank with a closed lid is growing fast but often going mouldy) really gentle treatment (breaks easily) Oh, I meant to say with the symbiotic cyanobacteria, the cyano is nitrogen-fixing, and the fern needs more nitrogen, so it has evolved little pockets for the cyano to live in. It even grows in a way that encourages the cyano to move to the new pockets as it grows. The genome of the cyano is now very reduced because it doesn't need to look after itself. Very cool! (I have so much respect for cyano, annoying though it is) Quote Link to comment Share on other sites More sharing options...
Insect Direct Posted September 27, 2010 Report Share Posted September 27, 2010 It seems to do best if harvested often or before it gets to thick, otherwise it seems to self harvest/starts to go to mush etc The cyano side of it is fascinating, I never knew that My azolla outside has gone red in the last couple of weeks, I use to think nutrients made it change colour. But I havent added anything. Must be a sign the suns out more or something? Quote Link to comment Share on other sites More sharing options...
malevolentsparkle Posted September 27, 2010 Report Share Posted September 27, 2010 http://www.fnzas.org.nz/index.php?PG=plant&PID=AF1 sounds cool, pity it doesn't like warm water Quote Link to comment Share on other sites More sharing options...
Ira Posted September 27, 2010 Report Share Posted September 27, 2010 hi there i dont know if this is in the right section but im wanting to know if there is any fish out there that will eat duck weed Severums eat it, I couldn't keep my tank stocked with enough for them. Put in so much the tank looked like a green blizzard and a couple days later all gone. Quote Link to comment Share on other sites More sharing options...
Stella Posted September 28, 2010 Report Share Posted September 28, 2010 It seems to do best if harvested often or before it gets to thick, otherwise it seems to self harvest/starts to go to mush etc Useful, thanks My azolla outside has gone red in the last couple of weeks, I use to think nutrients made it change colour. But I havent added anything. Must be a sign the suns out more or something? Yep, more sun Mine was pink when I put it is the tank but has faded back to green now. Hopefully over summer it will redden again, as the tank is next to the window. An interesting blog post about azolla and cyanobacteria: http://sciblogs.co.nz/bioblog/2010/08/0 ... symbiosis/ I would like to read the paper one day, but the terminology is somewhat offputting! Quote Link to comment Share on other sites More sharing options...
Insect Direct Posted September 28, 2010 Report Share Posted September 28, 2010 An interesting blog post about azolla and cyanobacteria: http://sciblogs.co.nz/bioblog/2010/08/0 ... symbiosis/ I would like to read the paper one day, but the terminology is somewhat offputting! I managed to read it, understanding it isnt so easy lol Quote Link to comment Share on other sites More sharing options...
Stella Posted September 29, 2010 Report Share Posted September 29, 2010 I managed to read it, understanding it isnt so easy lol :lol: nice one! Sounds like much of my uni work this year. Quote Link to comment Share on other sites More sharing options...
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