Cyano that won’t go away!

[sultwaterchick]

Hello fellow reefers!

I work for a shop on Vancouver isle. We have a customers tank we have been throwing everything at trying to get his cyano to reduce/disappear.
I will give you a list of what we have done, And water parameters.
All of these have been spaced out between 4-6 months. It’s a problem that won’t go!

products methods we have tried.
20% water change
Chemi clean
Hydrogen peroxide
Polyfilter
Uv sterilizer
Microbactor7
A full 3 day black out.
Cleaning sand
Reduced feedings
Nopox

not in that order. I can't think of anything else to try with out tanking down and starting again.

Water parameters are
Phosphate 0.1
Magnesium 1350
Alkalinity 7.7
Calcium 440
Nitrite 0
Nitrate 10
Ammonia .15

 

[HuduVudu]

Heat and gas exchange are usually the culprits. Until you fix those two issues you won't have a shot at getting it under control. You should also know that is is ALWAYS present in your system and will occasionally bloom if one of the two above situations become problems. Also make sure you have balanced set of herbivores to help keep things in check.

 

[sixty_reefer]

Raise po4 to 0.03 and check for silica in ro water you have got a mix of diatoms and Cyanobacteria

 

[esther]

Raise po4 to 0.03 and check for silica in ro water you have got a mix of diatoms and Cyanobacteria

PO4 is at .1, not .01.

 

[HuduVudu]

Raise po4 to 0.03 and check for silica in ro water

Cyano doesn't use Silicates. Wouldn't hurt to check for that anyway though.

 

[sixty_reefer]

Cyano doesn't use Silicates. Wouldn't hurt to check for that anyway though.

it’s mainly for diatoms

 

[sultwaterchick]

Heat and gas exchange are usually the culprits. Until you fix those two issues you won't have a shot at getting it under control. You should also know that is is ALWAYS present in your system and will occasionally bloom if one of the two above situations become problems. Also make sure you have balanced set of herbivores to help keep things in check.

I will check if he has a sump, I can’t quiet remember. And I will see where his temp. Is
He has a fantastic clean up crew. I forgot to mention.

 

[sultwaterchick]

I will order a silicate test.

 

[Pistondog]

I will order a silicate test.

Are you sure the tank is not near a window or under a skylight.
I have to use an umbrella for a couple of months as the sun hits a tank this time of year, due to skylight. I forgot this year, but the cyano reminded me.

 

[Robertellis30]

Water changes and chemiclean worked for me! Also been dosing vibrant after weekly water changes. Hasn’t came back.

 

[Dan_P]

It appears there is more than one species of nuisance organism. It also seems that these microorganisms are only or mostly on the sand. I wonder if @brandon429 might want to weigh in on troublesome substrate.

 

[brandon429]

Dan nice call fully agreed

Among options of care including to guide, coax, dose something, await, sheer force of will to rip clean the system sure works wonders. If the tank is accessible, not huge, impractical

If that was mine and a large system I'd burn it clean with uv

If that was a nano I'd rip clean it, fixed by tomorrow. I just redid my whole vase all at once just now as a rip clean and new sandbed replace, all corals opened within 2 hours fully pre rinsed new sandbed, skip cycle changed out over one hour.

Empty vase, four pound brain coral 14 yrs pretty dense it was neat to see it up close. I did my rip clean to rid an accumulation just like that one above, now its gone, no coax no wait due to ease of access

vase produced merletti 17 yrs old from one frag, these are delicate corals. Rip cleans evacuate the system so you can pack more feed in, like an exercise regimen.

Cleaning scummy vase after several years prior rip clean/ full sandbed tap rinse.

Reassembly after two hours

It doesn't matter if the reef is little or big, the biology scales exactly like an architect's model.

Posted that sequence to show that delicate reefs don't mind being ripped apart surgically, and their beds blasted clean with tap water for an hour, then ro, then reassembly

All the dosers given to the OPs system have created die off that needs export or the mushrooms of the reef tank are going to colonize the new energetic substrate.

 

[sultwaterchick]

Are you sure the tank is not near a window or under a skylight.
I have to use an umbrella for a couple of months as the sun hits a tank this time of year, due to skylight. I forgot this year, but the cyano reminded me.

The tank is away from all other light sources

 

[Lostreefin]

Chemi-clean has always worked for me when I added the proper amount, make sure to aerate for fish.

 

[dragon99]

I've had very good success using Dr Tim's program, using Refresh and WasteAway. It has worked on 3 separate tanks now.

 

[sultwaterchick]

Dan nice call fully agreed

Among options of care including to guide, coax, dose something, await, sheer force of will to rip clean the system sure works wonders. If the tank is accessible, not huge, impractical

If that was mine and a large system I'd burn it clean with uv

If that was a nano I'd rip clean it, fixed by tomorrow. I just redid my whole vase all at once just now as a rip clean and new sandbed replace, all corals opened within 2 hours fully pre rinsed new sandbed, skip cycle changed out over one hour.

Empty vase, four pound brain coral 14 yrs pretty dense it was neat to see it up close. I did my rip clean to rid an accumulation just like that one above, now its gone, no coax no wait due to ease of access

vase produced merletti 17 yrs old from one frag, these are delicate corals. Rip cleans evacuate the system so you can pack more feed in, like an exercise regimen.

Cleaning scummy vase after several years prior rip clean/ full sandbed tap rinse.

Reassembly after two hours

It doesn't matter if the reef is little or big, the biology scales exactly like an architect's model.

Posted that sequence to show that delicate reefs don't mind being ripped apart surgically, and their beds blasted clean with tap water for an hour, then ro, then reassembly

All the dosers given to the OPs system have created die off that needs export or the mushrooms of the reef tank are going to colonize the new energetic substrate.

Thank you, I will relay back to him.

 

[Bioreefed]

The tank is away from all other light sources

What happened after all? were you able to get rid of the cyano?
I'm having the same problem. That cyano doesn't go away