Cyano coming back in a 2 and a half year old tank

[sixty_reefer]

Yes it did it came back even more brown!!! Does that mean it’s dying? Also just put an order in for coral snow and mircobacter 7. I also thought I should mention I’ve been using two new chemicals both are brightwell aquatics there coralline algae booster and cheato grow. Could that be affecting things?

What are your current parameters?

 

[MysticBlue]

What are your current parameters?

Calcium 400
Alkalinity 9.1
Magnesium 1,521
Phosphate 0.9
Nitrate 10ppm
Salinity 1.025
Ammonia 0
Nitrite 0

 

[sixty_reefer]

Calcium 400
Alkalinity 9.1
Magnesium 1,521
Phosphate 0.9
Nitrate 10ppm
Salinity 1.025
Ammonia 0
Nitrite 0

I would try a black out to the tank, those parameters seem consistent with photosynthetic dinoflagellates

 

[brandon429]

Mystic

how many gallons is your setup

 

[neo1738]

Brown is likely more diatoms or dinos. Do you have UV? Buy a stand along UV that you can drop into the tank. Will help regardless.

 

[DCR]

You probably did kill the cyano with the Chemiclean and the brown algae, either diatoms or dino, took over immediately afterwards.

 

[MysticBlue]

Mystic

how many gallons is your setup

It’s a 75 gal

 

[MysticBlue]

Brown is likely more diatoms or dinos. Do you have UV? Buy a stand along UV that you can drop into the tank. Will help regardless.

Any particular one? I do not own one but I really want to have one installed!!!

 

[MysticBlue]

You probably did kill the cyano with the Chemiclean and the brown algae, either diatoms or dino, took over immediately afterwards.

Ok so the question is how do I get rid of diatoms and dinos? This is really frustrating me!!!!!!!

 

[neo1738]

Ok so the question is how do I get rid of diatoms and dinos? This is really frustrating me!!!!!!!

Something like this one of these

Filtration - UV Sterilization - UV Sterilizers - Page 1 - SaltwaterAquarium.com

www.saltwateraquarium.com