What did you do with your 220 recently? Is it a newly setup? I'm pretty sure something wrong with your filtration. Also, water change don't cause cloudiness...here are few thing possible for the cloudy water:
*Gravel Residue - If the water is cloudy immediately, or within an hour or two of filling the tank, it's probably due to insufficiently
washed gravel. Drain the tank and rinse the gravel until the water runs clear. That should resolve the problem.
*Dissolved Constituents -
If washing the gravel doesn't solve the problem, the next most likely cause of cloudy water in a newly filled tank is a high level of dissolved constituents such as
phosphates, silicates, or heavy metals. If you test the water, you'll no doubt find the
pH is high (alkaline). In these cases,
treating the water with conditioners will often resolve the problem.
*
Bacterial Blossom - Often cloudy water doesn't appear the instant an aquarium is set up. Instead it appears days, weeks, or even months later. In these cases the cause is usually due to
bacterial bloom. As the
new aquarium goes through the initial break in
cycle, it is not unusual for the water to become cloudy, or at least a little hazy. It will take several weeks to several months to establish bacterial colonies that are able to clear wastes from the water. Over time that cloudiness will resolve itself.
Decaying plants or excess food that remains uneaten can also cause the milky water seen in bacterial bloom. Regardless of the cause, don't panic over bacterial blooms. Keeping the aquarium very clean by removing debris such as decaying plants and uneaten food, vacuuming the gravel regularly, and performing partial
water changes, will quickly resolve most cases of bacterial bloom. Cut back
feeding to every second or third day, which will cut down on excess food decay.
If there are particles of debris in the water that you are unable to remove via water changes and vacuuming, a flocculent may be used to clear them away. Flocculates cause particles of debris to clump together so they can easily be removed by the filter (be sure to clean your filter so it's working at peak efficiency). Flocculates are generally marketed as
water clarifiers, and may be found at your fish shop.
Most members here will try to help you out but they are limited base on your information you provided. If you still not get the answer from members then google is your best tool...within few seconds search you would get a right answer to your problems.
