What is happening?

[5star]

Established 10 gal IM AIO tank. Tanks been up and running about 1.5-2years.. added some coral within the past month. I have a ai prime 16hd , my Parameters are -

ammonia 0
Nitrite 0
Nitrate 5-10
Calc 480
Alk 10
Mag 1320
Phos 0.04

weekly 20% water changes

this past weekend I realized my water has been extremely cloudy and overnight I had brown algae on my sand bed and glass, I’m thinking diatoms. Any tips on how to clear this?

 

[Saltyreef]

Sounds like you could benefit from removing your sand and giving it a really good rinse and putting it back in.

This could be done over a few hours on a weekend

 

[Millimylilly]

The reddish tint to it makes me think cyano

 

[5star]

Woke up to my sand bed having 0 algae on it. Water is still extremely cloudy. Anything I can do in the mean time to clear up the water?

 

[Subsea]

Use GAC, granulated activated carbon, to remove DOC, dissolved organic carbon.

If you have diatoms, consider using silicate removal resin.

 

[Millimylilly]

UV sterilizer will make your water clear and take care of the diatoms