HurricaneCaleb
New Member
Should I cut the refugium light also?
Cyano and how to get rid of it...
- Thread starter goma
- Start date
Driftbuddy1988
Member
Is this safe to do with,corals in tank I,have a bunch of polyps and zoas
Yes it won't hurt your corals to go a few days without lights... or you can cut your lights back to 4 hours a day for 5 days, this will really help too.
theplantman
Active Member
I would use the method nano is referencing and cut back to 4 hours for a week or so. Also as stated above, find the source, poor flow in areas, excess nutrients from over feeding, stocking or from the food itself. Cleanup crew may be too small, etc... One thing I have noticed a lot, most people tend to test for ammonia, nitrites and nitrates, but rarely do you see posts about phosphates when parameters are posted and these can be one of the biggest instigators of algae outbreaks. (A lot of commercially available fish foods contain phosphates)
Good luck!
slfcaptain
Active Member
I am resurecting this thread again. I just started a blackout and my NO3 and PO4 are both zero. As the cyano dies out and is no longer uptaking these nutrients can I expect NO3 and PO4 to rise?
Steve
Steve
Hey Steve, you may see a spike in nutrients so most people do a water change after the lights out period.
tangers
Member
I don't think you'll see a rise in NO3 as cyano doesn't need it to survive. e.g. people dosing carbon often have cyano outbreaks when NO3 hits zero but PO4 is still there.
slfcaptain
Active Member
Another question. In the original post it says to suck the cyano out and to not blow it around. I admit I have been using a turkey baster to blow it off rocks and occasionally off the sand. So I shouldn't be doing that?
The cyano is not thick enough that sucking it out is productive, its thin and whispy. So should I just leave it and let it die off or will I have to just bear with it and do my best to suck it out? If I leave it will it just fall apart and get skimmed out?
The cyano is not thick enough that sucking it out is productive, its thin and whispy. So should I just leave it and let it die off or will I have to just bear with it and do my best to suck it out? If I leave it will it just fall apart and get skimmed out?
slfcaptain
Active Member
Assuming the blackout works, why does it work? Conditions after the blackout are still similar to before the blackout so why doesn't the cyano just grow back? The water chemistry can't change that much, can it?
Steve
Steve
The times I have had cyano, it has always been associated with my overfeeding - I go lights out for a few days & then quit overfeeding 
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slfcaptain
Active Member
Tonight my ligths come back on but my toadstool looks sad. I haven't seen him open since yesterday morning. I hope he is ok.
Steve
Steve
slfcaptain
Active Member
Ok. They'll get a few hours tonight and then an extra hour each day until I get to 8 or 9 hours. I was a 9, I am wondering if moving to 8 would make a difference either way.
I tested today too.
PO4: 0.02 ppm
NO3: 0.25-0.5 ppm
So they both bumped up a bit.
Under the moonlights the tank looks clean so I am excited to see how it looks under full light.
Steve
I tested today too.
PO4: 0.02 ppm
NO3: 0.25-0.5 ppm
So they both bumped up a bit.
Under the moonlights the tank looks clean so I am excited to see how it looks under full light.
Steve
jimv
Member
I'm on day 2 of 3 and I have not noticed any less Cyano yet. I hope that 3rd day makes a difference. I just ordered a Phosban reactor so hopefully that will help as well. My phosphates are a 0 according to my API kit but they must be being consumed by the Cyano. My tank is getting hot with the cover on, it has gone up from 79 to 83.
slfcaptain
Active Member
Do you have any phosphate media now? I am running GFO and purigen, I don't know if that makes a difference. But, as the cyano dies out and nutrients in the water increase then it seems that having these media is certainly goid.
Steve
slfcaptain
Active Member
I also turkey basted everything a couple if time a day and wet skimmed.
Steve
Steve
slfcaptain
Active Member
Here is the after shot.
Steve
Steve