blue green algae/ cyanobacteria

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blue green algae/ cyanobacteria

Postby dev » Tue Sep 18, 2007 10:44 am

just found a plant with this stuff all over the leaves. have removed the plant but does anyone have any suggestions on how to treat this permanently as I am sure that there will still be residual bacteria in the tank? all water parameters (ammonia, nitrite, nitrate) 0, ph slightly raised at 7.4-7.8.
180L Juwel vision (w92cm x l40cm x h55cm )
5 zebra danios
4 corydoras sterbai
4 siamese flying foxes
4 neon blue guppies
4 variated platys
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fine river gravel substrate
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Postby krekra » Tue Sep 18, 2007 1:35 pm

Well you can try a three day complete black out like James suggests here

http://thetropicaltank.co.uk/phpBB/viewtopic.php?t=446

or you can cheat like I do and use 200mg/gallon of erythromycin once a day for 5 days. :oops: :innocent:

I have done it twice with great success and it has never harmed my filter bacteria.
Karena

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Postby dw » Tue Sep 18, 2007 3:33 pm

With the black out method, make sure you do the waterchange and filter clean after you uncover the tank again. I've made the mistake of not bothering, and the bga was back within a day...

I'm also pretty sure that erythromycin is only available from vets in the UK.
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Postby Apistogramma » Tue Sep 18, 2007 10:09 pm

DW is right - it is only available from vets or you can try and ship some in from abroad.
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Postby dev » Wed Sep 19, 2007 7:45 am

have removed all visible cyanobacter and done water change. do I still need to take further steps to rid any invisible stuff present?
180L Juwel vision (w92cm x l40cm x h55cm )
5 zebra danios
4 corydoras sterbai
4 siamese flying foxes
4 neon blue guppies
4 variated platys
Planted
fine river gravel substrate
dev
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Posts: 21
Joined: Tue Aug 14, 2007 1:53 am

Postby Angel Fish » Wed Sep 19, 2007 7:57 am

It's years since I had problems with BGA, so ignore me if this sounds weird, but would adding carbon to the filter after a water change but before the blackout help?
All the advice I give is based on my own personal 30 years of experience.
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Postby dev » Wed Sep 19, 2007 3:55 pm

got a carbon filter in already, changed approx 1 week ago, life given as 4 weeks. noticed some staghorn algae present as well. think I am probably over feeding and so will cut down alot.
180L Juwel vision (w92cm x l40cm x h55cm )
5 zebra danios
4 corydoras sterbai
4 siamese flying foxes
4 neon blue guppies
4 variated platys
Planted
fine river gravel substrate
dev
Member
 
Posts: 21
Joined: Tue Aug 14, 2007 1:53 am


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