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Outbreak of Cyanobacteria- help!

This is a discussion on Outbreak of Cyanobacteria- help! within the Beginner Planted Aquarium forums, part of the Beginner Freshwater Aquarium category; --> Originally Posted by 1077 Kymmie, Were this my tank, I would consider a good pruning of existing plant's to encourage new growth. Have heard ...

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Outbreak of Cyanobacteria- help!
Old 11-17-2010, 09:00 AM   #11
 
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Originally Posted by 1077 View Post
Kymmie,
Were this my tank, I would consider a good pruning of existing plant's to encourage new growth.

Have heard of antibiotic Erythromycin used to erradicate the Cyno but as I understand it also compromises the biological filter. I might be willing to try this as last resort .
1077- I did a HUGE pruning, enough so that what was once a heavily planted tank, now looks sparse. Anything that looked like cyano on the plants was removed. I don't have it in my substrate (yet) and scrubbed as much of it off the wood as I could. My anacharis also had cyano growing on it, so I pitched all of it but a few prime looking strands. I scrubbed off large portions that were on my driftwood with my fingernail and them sniffed it but I do not notice a bad smell. I've attached a pic, I'm sure that it is cyano but it doesn't "stink" at all to me. I'm highly sensitive to smells and from everything I've read it states that cyano is suppose to reek.

I will not use Erythro. This is my Discus tank and there is no how, no way, I will mess with the biological filter in this tank. I'm encouraged by Byron's report that it will come and go in stages. By removing all that I can, adding some new plants (to replace all that I've culled), and doing some large water changes in a row, I think I can do alot towards eliminating it.

Byron, incidentally I do have tons of crypts in this tank! After pruning they are down to just a few leaves. I will begin dosing with Flourish Comprehensive twice a week, instead of just weekly, and have already cut back my lighting schedule by two hours. Hopefully this will help to eradicate it. I've also added a new micron filter to help trap the loose cells of cyano that are floating, due to all my scrubbing of it.

Here's the pic, cyano for sure, right?? (The little white "things" in the pic are parts of the scrubber pad that were left behind)
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Old 11-17-2010, 12:30 PM   #12
 
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That looks like cyanobacteria to me, just like what I have on some wood in the 70g. I must track down that info on the relationship to crypts, it is too co-incidental.

On the Erythromycin, I did not mention this previously because it is indeed a last resort, and while it will (may) deal with the present cyanobacteria, if whatever causes it is not removed it will be back.

About a year ago there was a thread from another member who used Maracyn I believe, another similar antibiotic. I warned that this could kill some plants, and a week later he reported that it in fact did do just that. I used Maracyn once for an infection or something, and I noticed that within a couple of weeks the pygmy chain swords had melted, and the large red leaf swords too; the large green swords did not, though they did appear to have been set back a bit. Everything recovered eventually after several major water changes. But using antibiotics clearly risks damage to the plants. Sensitive fish would presumably be affected as well, along with bacteria obviously.

Byron.
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Old 11-17-2010, 12:35 PM   #13
 
I used maracyn for it once, my plants did fine, i dosed for a little over a week, ~8-9 days. you can see the cyano die, it falls apart and gets washed away in little ribbons. I did a 20%water change on day 4 and 10% changes day 9-12 (after i stopped dosing) as well as reinserting carbon on day 9.

I did not start getting it till i planted some crypts into my tank, did not know that there was a correlation...
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Old 11-17-2010, 12:41 PM   #14
 
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That reminds me of another side issue. Whenever some form of treatment is used that results in rapid death of algae or in this case a bacteria, it will cause a sudden increase in ammonia and possibly nitrates. The "blackout" approach for instance is highly dangerous on this front; the massive death of algae can poison a tank of fish overnight. Quick removal of the dead algae/bacteria is necessary.
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Old 11-17-2010, 01:08 PM   #15
 
Yup, which is why i changed my water in the middle of treatment.
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Old 11-17-2010, 02:00 PM   #16
 
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+1 on the blackout.

I did a 72 hour blackout on my 29 gallon planted that had a huge infestation. I did a post on here a while back about it. It was a success.

Of course the blackout by itself it not the only solution. After i did the blackout i dialed down the lights two hours a day, started dosing with ferts, and no problems since. Of course i had to add CO2 because of my high lights( most on here dont' use CO2).

It's an easy process. I did a 50 percent water change while vacuuming up as much of the nasty stuff as possible. Then blacked it out for 72 hours. I used black garbage bags...lol..it was "trashy" to say the least but effective. Then when i had finished the blackout i vacuumed up the grey dust bunnies that were left behind while doing a 50% water change. The post might still be available. i had lots of pics.....

whatever you do..good luck

Last edited by cmc29; 11-17-2010 at 02:04 PM.. Reason: left this part out
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Old 11-17-2010, 02:18 PM   #17
 
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heres a link to the thread of the pictures of blackout http://www.tropicalfishkeeping.com/f...miss-my-36742/
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Old 11-30-2010, 11:38 PM   #18
 
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I'm so disgusted! Enough so that I chucked nearly all of my plants tonight. I have another order coming in tomorrow. $200.00 via overnight. What the heck, it's only money right?
I cleaned the tank something fierce, did nearly a 90% water change and added a new diatom filter. (Can you tell I'm resisting the black out?) After all that my two pair of Discus went right back to guarding their eggs. The rest of the Discus are behaving like nothing at all happened. Only the loaches acted a tad frantic but went right back to normal after their driftwood was back in place. Yep, I pulled all pieces and scrubbed those. Nothing like a mad woman on a mission. I'm nuts sometimes.
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Old 12-01-2010, 01:11 AM   #19
 
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Originally Posted by aunt kymmie View Post
I'm so disgusted! Enough so that I chucked nearly all of my plants tonight. I have another order coming in tomorrow. $200.00 via overnight. What the heck, it's only money right?
I cleaned the tank something fierce, did nearly a 90% water change and added a new diatom filter. (Can you tell I'm resisting the black out?) After all that my two pair of Discus went right back to guarding their eggs. The rest of the Discus are behaving like nothing at all happened. Only the loaches acted a tad frantic but went right back to normal after their driftwood was back in place. Yep, I pulled all pieces and scrubbed those. Nothing like a mad woman on a mission. I'm nuts sometimes.


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Old 12-02-2010, 08:45 AM   #20
 
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I'm glad I could make you laugh.

Here's another laugh, just for you. In addition to pulling out all the plants I had also purchased another piece of Malaysian driftwood. It's a nice piece and I bought it as I'm toying with the idea of going hardscape and just forgetting about the plants in this tank altogether. After boiling the wood and getting it pristine I was ready to add it to the tank. As I was putting it in the tank it got "stuck" in the opening of the tank. The tank is acrylic and the openings on top are only so wide and so long. The piece is too large to fit in the tank! Duh, forgot about those openings when I bought this particular piece.

While I know I can cut it down to fit it will ruin the "look" and design of this piece, which is the sole reason I bought it. Grrrrr. When I upgrade to a larger tank it will NOT have "openings" on top. Darn it all!!
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