What could cause a hazy tank?

[cdub]

the only things that come to my mind i'm sure you have already checked.

once my skimmer overflowed and it dumped a bunch of nasty water back in the tank which made it cloudy for a day or so.

another time i filled up my auto top off and stirred up a bunch of solid kalk that was sitting on the bottom of the tub. the end result was very cloudy ato water, which in turn made my tank cloudy for about 8 hours until it settled back down.

i have also noticed that if you add any supplements i.e. reef calcium it will sometimes make your water cloudy the next day or so.

 

[kappaknight]

No gobies. No additives... no ammonia. nitrate and nitrite levels are both good. The water is clearer today but I don't think it's calcium either. Why? Well, I'm not adding any more or less than usual and as mentioned earlier, I don't dose anything besides kalk at a very slow drip rate. I also have a lot of SPS/hard corals in my tank utilizing it...

If it happens again, I'll see about testing some of the other stuff besides the normal stuff.

 

[stanfill reef]

Vinegar is acetic acid. There are plenty of carbons in acetic acid for little bacteria to live on. It could easily be an bacteria bloom. Should go away in a few days if you stop adding the vinegar. Otherwise, carbon should help over time.

 

[cameron]

If you get a bunch of tiny nassarius snails, it could be spawning. It looks like cloudy water apparently when they spawn. I get it about once every month or two.

 

[nishant3789]

maybe you could check the water out under a microscope? i have one at home, if you want to bring by a sample to the store i can check it out for you once i get back and let you know online