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Old 03-07-2007, 03:18 AM   #1
dizzyfun
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Melafix & BGA


Hi all. Still having a problem with the slime algae. Today it exploded and grew all over a 1' x 8" piece of lava rock in the tank. This morning it was only a few spots of algae.
I noticed that Melafix is sold as a useful for treating bacterial problems. Since slime algae is really a bacteria, not algae, can iat be used to treat?
I am considering the hydrogen peroxide method if melafix isn't an option. I don't want to use E-mycin because the tank is new and the good bacteria is still trying to establish. I don't want to do the blackout method because all my plants are still kinda in shock from arriving at my house half frozen.
Any other suggestions?
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Old 03-07-2007, 03:31 AM   #2
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the Myacin I works... it only kills gram negative bacteria.. and BGA happen to fall in that category..

You'll have to do a black out and the antibacterial... Reduce you photoperiod after this is all done.
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Old 03-07-2007, 02:33 PM   #3
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thanks for the reply. i know my photoperiod definately has something to do with the algae. it's too long. about 14 hours. i need to buy a timer. thanks.
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Old 03-12-2007, 02:19 AM   #4
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Your filter bacteria should not be affected by erythromycin...
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Old 03-12-2007, 02:37 AM   #5
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Erythromycin is most effective against gram-positive bacteria. BGA is a gram-negative bacteria that has an unusually high sensitivity to erythromycin. Your nitrifying bacteria are also gram-negative, but do not share this sensitivity.
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Old 03-12-2007, 03:31 AM   #6
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How would you dose Erythromycin to kill the BGA? What would the schedule be like?

I dont mean to hi-jack the thread!
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Old 03-12-2007, 02:10 PM   #7
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You are confusing Melafix with marcyn I think. Melafix is tea tree oil I believe. Maracyn is what you use to treat BGA>
Maracyn is likely not to harm your Nitrobacter...it is geared more towards a different population. Use the Marcyn and be done with it.
You dose it as directed....calculate the dose based on gallons and dose for I believe 5 days, then do a water change and put carbon in your filter.

Sergio is 100% correct....people have been perpetuating the wrong info for many years.....Erythro will not harm gram neg bacteria.
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Old 03-19-2007, 02:30 PM   #8
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Quote:
Originally Posted by PeteyPob View Post
How would you dose Erythromycin to kill the BGA? What would the schedule be like?

I dont mean to hi-jack the thread!
250mg/100L
Keep it up for 5 days, even if all the algae is gone.
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