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Discussion Starter · #1 ·
K, i've taken care of duckweed successfully in the past: patience and tweezers! But somehow, for the first time ever, I got wolffia! I dont' even know where it came from. I only picked up 3 otos from a LFS but they have no floating plants in any tanks that I saw (and I have purchased stuff there often over the last 2 years). Anyway...

suggestions for getting rid of this stuff? I have a heavily planted 65 gallon and vals are covering about 1/3 of the surface, so netting it out with a brine net doesn't look like a fantastic solution.

as for my fish load... I only have 5 SAEs and a handful of otos. a few random snails that hitched rides on plants, nothing special. I wouldn't mind adding a "utility" fish to go to town on this stuff, but i'm having trouble finding good info. a temporary feeder goldfish maybe? american flagfish?

obviously, if i have to resort to tiny tweezers and a tiny net, i will do so... but this stuff is growing quickly and i think i need a little help from mother nature! suggestions?
 

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Discussion Starter · #4 ·
nooo no no no chemical solutions :)

I have a UV sterilizer already (runs nightly). doesn't seem to affect it.

lawn? LAWN? I'm from Michigan! It's 8 degrees outside today! hee hee. I won't see "Lawn" until May!


i don't have spare tanks (nor will I set them up just to house goldfish). I'm wondering if a fish like a platty or a flagfish or a rainbow will eat this junk and I can keep 'em in my tank anyway as part of the clean-up crew (as you can see, the clean-up crew is all i have and all i actually want!).
 

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Discussion Starter · #7 ·
ha ha yeah, real "lucky".......

now i need to go buy a small net! my normal fish nets have holes which are too large. blah... with the vals forming a huge mess of leaves on the surface, i'll never get this stuff all out :(
 

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Discussion Starter · #11 ·
rosy barbs... wet vac... or bleach. those are my options... hmm... let's ponder that...

bleach... i already have some, but i'd need to replace quite a lot of living stuff (like, ALL of it). cost - few hundred dollars

wet vac... i don't own one, but could buy one. cost... hundred bucks for a cheapo?

rosy barbs... don't own one... can buy for 3 bucks at most LFS? then i can take 'em back and get a buck in store credit. i didn't want to buy a feeder goldfish (tank is maybe too warm for him?). i imagine they'll leave the SAEs and otos alone (actually, i don't think anything can go near the SAE's; they are way too fast).


man, i really thought duckweed was bad. at least i could net that stuff!
 

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Discussion Starter · #13 ·
yeah... one nice thing about a feeder goldfish is that it would be very easy to catch (goldfish are stupid!). but i'd still be worried of the diseases it might be carrying, plus the fact that goldies prefer cooler water. So maybe two rosy barbs will do the trick. i'll see if I can get them at the LFS. hopefully they'll go after the wolffia before the plants. then again, even if they nip at a few plants, i doubt they could really stunt the growth of anything in there :)
 

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Discussion Starter · #15 ·
yeah, i saw that it is eaten by people and was rich in plant protein! kind of cool. too bad i'm still not gonna eat anything that comes out of my aquarium :)

speaking of things that aren't eating it... neither are the stupid goldfish i picked up (the LFS didn't have any rosy barbs in... or anything else i felt like trying, so i went with goldies because they are dumber than heck and easy to catch later). the only thing i'm worried about is all the diseases that can come with them. hopefully i'll be alright. they seem to be ok... but MAN are they dumb. and they haven't really been eating the wolffia. they take bites occasionally, but then spit it out half of the time. i thought these guys were gonna tear into this stuff like candy! i might have to help them out by scooping most of it out... maybe they'll finish off the rest? i dunno... but having these big GOLD things in the tank are a bit of an eye sore! *sigh* i should have just used the hand grenade suggestion...
 

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Discussion Starter · #18 ·
actually, both are pretty good suggestions. i'm already not feeding the goldies. (i don't feed any animals in the tank, actually).

frying them with UV lights is kind of a neat idea. i might have to consider it.

the vals i could weigh down i think... but i have some other stuff that sticks out that i can't quite deal with. regardless, i think i'll have to start scooping some stuff out... the wolffia i think will multiply faster than the goldies can eat it (if they ever get around to it).

i'll keep the UV grenade in my back pocket as a last resort. it would certainly be a fun experiment, though! i like stuff like that!
 

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Discussion Starter · #20 ·
that's not a bad idea. maybe i'll fish out a couple of small bags of this stuff and offer it up for the S&H costs or something. i wouldn't keep and grow it... but maybe other people would. i just thought of this only as a pest species.

one man's pest is another man's prize!
 

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Discussion Starter · #27 ·
the goldfish... completely uninterested in the stuff. so now i have two feeders i need to give away (i can't bring myself to kill them). they took big bites, then spit it out. they were more interested in the snails, actually. they'd pluck baby snails off the glass and would eat them! stupid little orange gutter feeders...

so i'll try something else next. i saw some "rosy barbs" at the store but... they weren't rosy barbs. i'll keep my eyes open for them. in the mean time, i've been trying to just net some of it out to keep myself from going crazy. but the stuff will actually sink in the water and will very slowly resurface, so it's harder to snag than duckweed (which definitely rises to the surface much more quickly, if it even goes under at all).
 

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Discussion Starter · #29 ·
sorry i didn't send any to anyone... this stuff is just too evil. this is not a case of "one man's junk..." unfortunately. it needed to be eradicated.

goldfish didn't work, rosy barbs didn't work, and neither did turquoise rainbows. i gave up and tried some white mollies because they were 2 bucks at petsmart. they are ugly as sin to look at, but they have been SLOWLY working away at it. i netted out whatever i could, and let those hungry guys go after the rest (i didn't feed them, i'm mean). they aren't the best "hunters" but they'll find it eventually and munch on it. of course, since they were petsmart fish, some of them slowly died away. one developed popeye shortly after i got him, and others had random sickly issues. but... i'm hoping in another week i'll be completely free! i would claim victory, but i'm sure there are 5 plants in there i can't see... and if left unchecked, they would multiply into 50 in a week, and then 500.

so, if anyone else is trying to get rid of some wolffia. starve some mollies. although i still think some hungry angels would have made a meal of it, too.
 
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