Cyano outbreak for months

[Tom-nanoreef]

Hello, in the past few months I have been struggling with a cyano/algae outbreak. A few months ago, in march, I used to over feed my tank and that is what I believe might have les to the issue. A few months ago, a huge amount of cyano appeared and started completely covering my tank, a month or 2 after that, green film algae shared the spot, and now I have bubble algae and hair algae as well. Anytime I introduce coral, algae and coraline grows right over them. I have done many water changes, introduced phosphogen and carbon, and cleaned the tank during the water changes. Barely any improvement. Recently, in the past month I have gotten an explosion in coralline algae (most likely due to more stable conditions). Is there any way I can remove this algae so I can get corals again?

I have one clownfish, 3 nerite snails, 3 ceriths, 6 hermits.
It seems like my alkalinity has been low in the past few months, I’ve recently began dosing it to get to normal levels.

 

[Geebs19]

Only thing that worked for me was GFO. Wiped it out almost immediately. I was running high phosphates due to heavy feeding as well.

 

[Tom-nanoreef]

I even increased the flow

 

[JGT]

I’d do a reboot, rip clean. Check on here for a thread by @brandon429 which will give you the necessary steps.

 

[Tom-nanoreef]

Only thing that worked for me was GFO. Wiped it out almost immediately. I was running high phosphates due to heavy feeding as well.

This is what I’m using, phosphates consistently test zero, nitrates 2

 

[Geebs19]

Can try this as well. https://www.reef2reef.com/threads/extreme-water-clarity-and-cyano-eradication-made-easy.916381/

 

[brandon429]

Custom rip clean thread for nanos, top cure for dinos and cyano above any method.

This is probably my fiftieth rip clean thread, they tend to go out pages and pages of jobs over time. Let’s start a new 2022 one here reasons rip cleaning is the best option for nanos to rid your tank of cyano and dinos: known fix date and no tradeoff invasions. What do we see in the dinos...

www.reef2reef.com

 

[ReefGeezer]

Cyano is totally about dissolved organics. The bacteria can obtain the N&P it needs from it. The bacteria also needs light. The key to beating this pest is reducing dissolved organics and, for a while. light. Do a 50% water change & suck out as much of the Cyano as you can in the process, add a bunch of GAC (in a reactor if possible), skim wetter if you can. This reduces the dissolved organic content of the water. Then turn out the lights for several days. When you turn the lights back on, watch for recurring Cyano and turn them off as soon as you see it start to grow.

 

[CasperOe]

This is what I’m using, phosphates consistently test zero, nitrates 2

Started using exactly the same and it fixed my cyano with a couple of days! I test near zero on both nitrates (Red Sea) and phosphates (Hanna)

 

[Tom-nanoreef]

Started using exactly the same and it fixed my cyano with a couple of days! I test near zero on both nitrates (Red Sea) and phosphates (Hanna)

I have been using these for the past month, cyano slowed down but never completely went away

 

[Tom-nanoreef]

I’d do a reboot, rip clean. Check on here for a thread by @brandon429 which will give you the necessary steps.

I would do one of these but I’ve grown quite fond of my tank, I removed my carbon to see if it affects anything (left phosphogen in there), if it doesn’t work I’m going to wait a few weeks and then try cyano eating bacteria.

 

[Tom-nanoreef]

I would do one of these but I’ve grown quite fond of my tank, I removed my carbon to see if it affects anything (left phosphogen in there), if it doesn’t work I’m going to wait a few weeks and then try cyano eating bacteria.

I have some coralline in there that has just started to grow again (I had a system crash in January) and it will probably out compete it in a few months/a year