I've had my 55 gallon freshwater tank for 6 months. It has been running smoothly until 2 weeks ago. Now the water is slightly cloudy. Why is this? Should I be "vacuuming" the debris off the bottom of the tank? If so, how?

More Questions. Additional questions in this category.

• 

  I just upgraded from a 25gal tank to a 55gal tank yesterday, this morning when i woke the tank was cloudy 'kinda' like milk water. i use 2 pumps for a under gravel filter and a aqueon cascading water filter sized to fit a 55gal.
  by new2fish on September 22nd, 2008 | 1 person likes this

• 

  24 gal nano has sponge filter followed by floss. How do I put a different filter in, closed back. What type should I use?
  by zlots331 on January 19th, 2008 | 1 person likes this

• 

  Had a 125 gal setup moved 10 fish into a 33 gal tank. Used the gravel and water from my big tank. It has been great for about a month. Some of the pairs started to setup a nest. 2 days ago water went cloudy 8 fish died. Any ideas?
  by Anonymous on September 1st, 2008 | 1 person likes this

• 

  Hi. I have just set up my first 29 gal tank. I have added rinsed gravel,little decoration,two live plants,the filter, heater and the air pump . The water was crystal clear yesterday, but today i noticed it is cloudy even without any fish in it. Why?
  by prad on April 20th, 2008 | 1 person likes this

• 

  Help with my goldfish! continually spending all their time at the top of the tank. changed water, have a filter. at a loss as to what is wrong?
  by Anonymous on October 17th, 2007 | 1 person likes this

• More Cloudy water See only professionally researched Cloudy water questions