I had that problem when I was using carbon inserts...
No matter how long I spent pre-rinsing them, they always cloudied up the
water.
I replaced the carbon inserts with lavarock and EHFI Substrat, and have had
no issues ever since.
....Kodiak


"Wendy Puckett" wrote in message
...
Nitrates are 0ppm and temp of the tank is 74 degrees Fahrenheit. I've
tried the water change in intervals of 20% at a time every 3 days for 2
weeks and had little success. Is there a chance that it's some sort of
algae? Besides buying a diatom filter for it, is there anything else I
could try? Right now I'm using carbon in the media baskets in both of
the penguin 330s.

Thanks
Wendy

Geezer From The Freezer wrote:
You didn't state what your nitrate parameters are
(i'm sure it's not that). Have you considered doing
a 30% change every two days for a week and see if that
gets rid of the "haze" for at least a while?

Also what temperature is your tank at?