Battlimg Cyano and Dino at the same time

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I'm currently battling cyano and dino at the same time (Coolia dino).
I have installed an UV sterilizer and the dino seems under control but the cyano is getting worse by the day.
It's starting to create a thick red mat covering sand, rocks and backwall.
My corals are not happy at all.
Tank is 14 months old with stable parameters.
Alk 9
Cal 430-440
Nit 20
Phos 0.06

What should i do?
Currently i'm changing the socks every day and i'm also dosing bacteria. Every other day i'm cleaning rocks and sand but the cyano is keeping coming back with a vengeance.
I want to dose something like chemiclean to kill the cyano so i can deal with the dino on it's own.
Little note my skimmer since i've installed the uv sterilizer is overflowing non stop.
I have performed 2 12% waterchanges and placed a bag of carbon in the sump but it's still overflowing. Could it be the dinos and or cyano killed by the uv?
(UV IS 25W tank is 55gallons)
Any advice is really appreciated.
 
Other than Chemiclean, folks recommend siphoning it out, and increasing water movement in the tank.
 
Other than Chemiclean, folks recommend siphoning it out, and increasing water movement in the tank.
I'm already doing it, increased flow and when i do my waterchanges i do siphon sand and rocks but it's not working.
 
Chemiclean, you think your skimmer is overflowing now 😆
I used my skimmer to change water after chemiclean. It was a last resort treatment but the cyano resisted all of the other work with flow, siphoning, etc for me also.
 
Nitrate levels of 20ppm while having a lot of cyano growth sounds like you need to be persistent for a bit longer until your nutrient reduction efforts actually show effect.

Water changes, fixing the skimmer if possible, algae refugium/scrubber, copepods for breaking down detritus, pumping 30-40x the tank volume per hour through your powerheads, targeted and less feeding, etc. will help. But you will need to be patient. Cleaning up a tank takes quite a while :(

I know people associate low nutrient levels with dinoflagellate outbreaks (it's a bit more complicated in my opinion as they also need nutrients), but I don't think you need to worry about this for now. As long as there is cyano growth there are dissolved nutrients available and the coolia dinos you see might go away with the cyanos.
 
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I think your parameters are OK.
I visited LFS recently and flow they have in their tanks is enormous, use as much flow as it can be tolerated by inhabitants, you can use it intermittently. Copepods definitely would help. Siphoning should be done on daily basis, not with water changes, siphon through filter sock and return water back to tank. Most would not recommend too frequent water changes. For Dino, UV filter might be helpful.
Good luck and have persistence!
 
Chemiclean, you think your skimmer is overflowing now 😆
I used my skimmer to change water after chemiclean. It was a last resort treatment but the cyano resisted all of the other work with flow, siphoning, etc for me also.
I have not used chemiclean yet, the skimmer is going crazy for some other reason, it started the day after installing the uv.
I think your parameters are OK.
I visited LFS recently and flow they have in their tanks is enormous, use as much flow as it can be tolerated by inhabitants, you can use it intermittently. Copepods definitely would help. Siphoning should be done on daily basis, not with water changes, siphon through filter sock and return water back to tank. Most would not recommend too frequent water changes. For Dino, UV filter might be helpful.
Good luck and have persistence!

I have ordered a small army of copepods and phyto to help me fingers crossed.

I will wait to ise chemiclean :)
will keep you guys updated
 

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