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Topic Review (Newest First)
12-13-2012 05:10 AM
plantbrain
Quote:
Originally Posted by happi View Post
i just realize that it might be GDA,looks similar to cyno in my tank. this is not my pic but this is what exactly happening in my tank.

http://www.aquascapingworld.com/thre...o-fix-it.1541/
Then EM will not work.
I had several folks try EM on GDA at Sewingsalot' report that it worked.
It did nothing for several aquariums with it when those folks tried it.

GDA is an oddity.

Lowering light, so called brown outs does effect it.
I tend to not like those and try other approaches 1st. Blackout for 3 days only works on BGA, Green algae might grow slower, but when you increase light back up, just like the plants, they take off again. Algaefix seems to have killed some folk's cases, but others report it had little effect.

If you lack a real dense amount of plant biomass and have a lot of light, this also seems to be asking for GDA ISSUES. Some folks go months with it. I suppose I've been very lucky as all the cases I had lasted only a 3-4 weeks.
But it made testing it problematic, and inoculation seems impossible in a well run tank near as I can tell.

If it's GDA, then you'll need a different approach for sure, BGA, easy to get rid, folks have spent months with GDA.

H2O2 etc will do nothing to GDA.
12-13-2012 01:51 AM
Capsaicin_MFK I had no fish in my 10g and I had a bad infestation of BGA from a botched DSM, so I triple dosed EM with no affect to the BGA. I tried a 4 day blackout and it didn't work either. The only thing that worked was spot treating with H2o2. If oxidizing is an issue, you could always try Potassium permanganate.
12-11-2012 01:57 AM
discuspaul If it is in fact green dust algae, i.e. it's mostly on the glass of the tank and is easily wiped off - then a UV sterilizer will deal with all of it that you can get free-floating into the water column. I got rid of it by wiping it off daily for several days in a row, so that the bulk of it was into the water and the UV could pick it up & zap it.
You still have to remedy the problem long term by determining the root causes & dealing with that, but the UV will kill off all the free-floating material it can take in via it's in-take filtering process.
12-11-2012 12:47 AM
happi i just realize that it might be GDA,looks similar to cyno in my tank. this is not my pic but this is what exactly happening in my tank.

http://www.aquascapingworld.com/thre...o-fix-it.1541/
12-10-2012 04:30 AM
Seattle_Aquarist
Quote:
Originally Posted by happi View Post
am on 3rd day of treating it and haven't seen any difference yet, what are the signs to look for? beside it floating up toward the surface, which hasn't happened yet either.
Hi happi,

A couple of years ago I dealt with BGA / Cyanobacteria on several occasions. The first time it responded well to EM treatment however the next outbreak the EM had minimal affect and it came back almost immediately after the treatment ended. Apparently there are several species/strains of cyanobacteria, some of which may be show resistance to antibiotics.

Eventually I got rid of it by removing as much as possible manually, spot dosing with H2O2 for about a week, and being more conscientious about keeping my NO3 levels up.
12-10-2012 04:12 AM
plantbrain Are you certain it's EM you are adding? BGA should be dead by the 3rd day, even the black out method kills BGA by the 3rd day.
12-09-2012 06:19 PM
happi
Quote:
Originally Posted by Borikuan View Post
Im battling a BGA outbreak miself. Will this med kill my bio filter?
so far i have heard that it does not harm the bio filter, but you are still likely to get ammonia spike, nitrate spike as the Cyno break down from the med.
12-09-2012 04:27 PM
Borikuan Im battling a BGA outbreak miself. Will this med kill my bio filter?
12-09-2012 04:13 PM
happi am on 3rd day of treating it and haven't seen any difference yet, what are the signs to look for? beside it floating up toward the surface, which hasn't happened yet either.
12-08-2012 04:33 AM
plantbrain
Quote:
Originally Posted by happi View Post
Tom didn't you agree with me that in low or high nitrate it can still come back. so i don't know why do i need to keep that nitrate at those levels?
Yes, but the 10 ppm threshold seems to prevent reoccurrence more so than not. Particularly with the BO method and with EM to a lesser extent.
Still, it's a general protocol I've used for folks with BGA issues, it works.
12-08-2012 02:28 AM
happi
Quote:
Originally Posted by plantbrain View Post
EM should kill any BGA. It does not prevent returning BGA, but it will kill everything that is there.

I treat for 3 days, I doubt you need to treat beyond that.

Big water change before, dose KNO3 and then a big water change 4-5 days later after treatment and more KNO3.

Anything 10ppm or over is fine for NO3 for the dosing KNO3.

Tom didn't you agree with me that in low or high nitrate it can still come back. so i don't know why do i need to keep that nitrate at those levels?
12-07-2012 09:31 PM
plantbrain EM should kill any BGA. It does not prevent returning BGA, but it will kill everything that is there.

I treat for 3 days, I doubt you need to treat beyond that.

Big water change before, dose KNO3 and then a big water change 4-5 days later after treatment and more KNO3.

Anything 10ppm or over is fine for NO3 for the dosing KNO3.
12-07-2012 09:00 PM
herns
Quote:
Originally Posted by happi View Post
please suggest how the treatment should be and how much erythromycin should i dose. thanks

It should have on the package.

Erythromycin/ Maracyn is a potent med to cure BGA. Ive been using that few times in the past and it always have good result.
12-07-2012 08:53 PM
wkndracer when I used it I did the recommended dose for treating fish the first day and 1/2 dosed after that for 5 more days.
12-07-2012 08:06 PM
happi anyone??
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