View Full Version : Green Hair Algae on Riccia

03-29-2010, 09:24 AM
Hello, all:

I have a batch of riccia in a small fry/breeder plastic container hanging over the top of my 55 gal planted tank. It's growing nicely, but it has started getting green hair algae in it. I previously tried throwing some algaefix into it, and it killed out the whole batch of riccia. Anything else I can do for this?

(I also have some riccia attached to a rock on the bottom of thr tank, sand same thing happening to it.)


'other' larry

PS- This is not the 'blue green' shroud-type algae. I was able to eliminate that sometime back with some maracyn. This is just fine, stringy stuff..)

Chris Noto
04-10-2010, 04:38 PM
I recommend a one thousand percent water change every hour, Larry! :D (Then, again, with the riccia right under the lights, it might just be a lost cause.) :(

All the best,
Chris Noto

P.S. The chemical remedy thing is tough. You are wanting to kill one green plant, the algae, while leaving the other one, the riccia, alone. Short of a genetically tailored virus, or a nanomachine, I don't see it happening. Then, again, my son is in the biochemistry / gene mapping business. Maybe, some day.

P.P.S. I know this post won't bring you joy, in terms of the practical problem, but I saw that you'd had zero replies, and didn't want you left all alone, out in the cold. :) See you tomorrow!


"Monty Python and the Holy Grail (http://en.wikipedia.org/wiki/Monty_Python_and_the_Holy_Grail)" The Knights Who Say "Ni!" (http://en.wikipedia.org/wiki/Knights_who_say_Ni)
We demand a shrubbery! (http://www.youtube.com/watch?v=2UbtcmjfKa8)
An aquatic shrubbery!

04-10-2010, 09:16 PM
Thanks, Chris.

And I actually did a 1,000% Water change already. Even tried placing the riccia on my head to cover the bald spot, to see if the oils from my head would kill the algae.

No luck with the algae, but my bald spot looks a lot better!

Thanks for the advice and see you tomorrow.


04-13-2010, 03:10 PM
Siamese algae eaters, maybe. They eat the black hair algae and the side shoot off of all my java moss. One of the reasons I keep buying more java moss at every meeting, great food for SAEs. I am sure they would love some green hair algae as well. But they might also eat some of the riccia. If some of that stuff gets stuck to my arm I usually rinse it off in my goldfish tank or my 75 gal and the riccia just disappears. I know the goldfish eat it but in the 75 only the SAEs and the minnows like veggies. So SAEs could be riccia eaters, but I suspect the minnows like it even more.

If I understood Mark right in the last meeting, then male gouramis might remove the hair algae to build bubble nests and then you could just scoop it out. I wonder how well that would work.

04-13-2010, 04:15 PM
Would a heavy dose of excel work? I thought you could do 3x the max dose every 3 days and it would basically kill any algae with minimal damage to the fish and plant (with exception being val, anacharis)?

DISCLAIMER: I personally have never tried aforementioned treatment. Results may vary. Please consult your physician. Batteries not included. See in-store for complete details.

04-17-2010, 11:28 PM
if you decide to go the excel route go only at the daily does for your tank. an excel overdose can kill riccia.

edit: and I should add, you still run the risk of killing it with normal excel dosing.