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ddrfreak_tung 10-05-2011 01:45 AM

Oh em gee!!! Cyano help!!!
it's taken over. i dont know what else to do. i've thrown in my asian ambulia to absorb the extra nutrients but it's not helping much. i stopped dozing for a week and it showed improvement but then it made a comeback once i was forced to dose again due to my dying plants. i've increased co2 and flow and nothing seems to help:angryfire:angryfire:angryfire.

flourite red
2x24w cfl only the tops of the bulb hits the aquarium.
8hr photo period
eheim 2213
im dozing a small amount of kents marine proplant & kents iron/manganese
weekly wc
i dont test water parameters. everything's the same as my 15 gal except substrate and the 15 is perfectly fine.
i started as a dsm for a few months before filling it. it's been filled for about a month now and it's been like this.

chad320 10-05-2011 01:49 AM

Erithromycerin. might be spelled wrong but that will fix you up.

ddrfreak_tung 10-05-2011 01:52 AM

will that harm my betta? and will it destroy the bacteria within the system?

wkndracer 10-05-2011 01:53 AM

antibiotic bomb it with Maracyn or anything based on Erythromycin.


Contrary to posts here I've killed it twice in friends tanks with a black out on the tank of 3-4 days. It does work.

chad320 10-05-2011 01:54 AM

It wont hurt your fish. You should research what caused it or it could come back. It most often occours in newer tanks tho.

kamikazi 10-05-2011 01:57 AM

maracyn for 5 days you wont regret it, it worked on two of my tanks.
check THIS THREAD out

wkndracer 10-05-2011 01:59 AM

Just had a member follow up on using a black out and he's happy.

Chemicals work and at about 1/3 less than needed for treating fish but it can be done chemical free.

ddrfreak_tung 10-05-2011 02:07 AM

thanks a ton. i'll have to try both out. i'll get mr fishy out tho just in case =)

ScottFish 10-06-2011 12:05 AM

Good luck; you have it bad. Been there, done that; have the shirt. Everyone has given you great advice. You do need an antibiotic (because the stuff you treating is not really algae), followed with a blackout. Fish will be fine, and your good bacteriea might take a bit of a hit. After you are done, keep an eye out for an ammonia spike. I had a mini-cycle sneak-up on me afterwards.

ddrfreak_tung 10-06-2011 12:12 AM

I took my betta out, for some reason after 1 night I found his fin torn up pretty badly. So right now hes in a temp bowl til I figure things out

jccaclimber 10-06-2011 03:39 AM

Maybe not as much of an issue since you've taken the fish out, but use an air stone when you med or black out the tank. All that stuff is going to rot when it dies. There are several threads on here involving people with fish gasping at the surface as a result. The meds won't hurt the fish, but the low O2 or ammonia resulting from the rotting might. I got lucky that my BGA cleared up when I went to EI/CO2 (heavy on the KNO3 until the BGA left) and cut my light back a small amount.

ddrfreak_tung 10-06-2011 11:39 AM

Started the blackout, I'll let you guys know in 5 days.

allegoriest 10-10-2011 02:53 AM

I'm actually having the same problem, in a 10 gal with a betta. He doesn't seem to notice it at this point, and I think I'm gonna put him in a bowl for a few days. (I also have never bothered to run tests, mostly due to the fact that I have a betta in 10 gallons. Yes, I'm irresponsible. ;__; ) If I tear the tank down, and then blackout, do you think I can get rid of most of it without antibiotics?

I've also heard elodea is good for some type of prevention, but I've never had this kinda of outbreak before.


freph 10-10-2011 03:19 AM

Reminds me of the swamps in the woods near here. :hihi: That's some pretty bad BGA you have there. I'd definitely look into your nitrate levels, detritus levels and substrate cleanliness as well...I know I get it from time to time in my 20g tall (miracle grow organic capped with pfs, tons of MTS to churn the sand but still gets funky) when I get lazy...usually if you catch it early you can spot treat it with H2O2. For this though, definitely antibiotics and a blackout. Good luck!

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