Jump to content

Foggy Water

Recommended Posts

I have a tank that is semi-cloudy. At first I had what I thought was a solution. I started up a UV sterilizer, and it took care of it after a few days. So I thought it was a bacterial bloom. But less than a week later, it came back. UV sterilizer is still on, but the cloudiness remains.


Phosphates, Ammonia, Nitrates at 0.

Calcium 410.

I've used mechanical filtration as well. The fog just sort of hangs around. It's not terrible, but I've never had this in any of my tanks.



Share this post

Link to post

Figured I'd bump this even though I do t have any responses. The tank is 5 months old. The cloudiness has never gone away. I've ran a ton of carbon, uv sterilizer, big water changes... nothing works. The cloudiness gets worse, then better, then worse again...but it never goes away fully. I'm not sure what to do anymore. Ammonia, nitrates at zero. Calcium at 420 last I checked. Nothing is dying and the couple corals I have are thriving (granted it's just GSP and a torch). I'm at my wits end. 

Share this post

Link to post

Are you running an ammonia based phosphate remover like phosgaurd?

I assume your running some kind of phosphate sponge from your 0 phosphate, unless your running a macro algae refugium somewhere. 

Phosguard for example can make your water white, if you tumble it. 


Are you dosing your tank with calcium or alk? what are you dosing your tank with if your dosing? 

Have you tried to use a water polish filter like this guy:



with the micron filter to see if its possibly some wierd form of sediment which is too small for your current mechanical to filter out?  



  • Like 1

Share this post

Link to post

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recommended Discussions

  • Create New...