Cloudy Aquarium Water - How to Fix Cloudy Fish Tank Water

danilhastings asked:

i bought the tank last week and the first few days it was crystal clear now its very cloudy. im not sure how big the tank is but i bought the tank and got 7 fish so im sure its not over populated or the person at the pet shop would have said something. im not sure what type of fish they are either but they are white and black and pretty small (like 1 inch long)
at first i thought it was the filter because when i poke the rocks with the net bits of food and poop come out of it. i went back to the pet shop and the girl said that the filter is fine but i might be overfeeding. she said to empty a quarter of the tanks water every 2 days and replace it with clean water.
i went home emptied the tank and put new water in and fed the fish less but it got cloudy even when i changed the water every 2 days and its still very coudy whats wrong??
the water also gets hot sometimes. if i open the top to feed them and i can feel heat coming from the water. i dont put the light on during the day and the weather is always cold.
the fish are like some of the fancy goldfish but
some are black and some are white and there is 1 that is bron and gold (proper gold like a ring not orange)

Below is an awesome video from  that shows us actual time-lapse proof over a 5 period how a  eradicated the cloudy water in his fish tank.

You are facing a problem if your yellow water is due to dissolved organic carbons. This is a waste issue. You have a DOC problem if your water is cloudy, you have no aquarium wood in your tank, fish are sick or dying and there is an unpleasant odor. You may see clumps of decaying waste or dead plants. This problem is more common in brand new tanks and tanks in which you've recently switched to a new type of food. Improper filtration, infrequent water changes, dying plants, dead fish or invertebrates in the tank, overcrowding, leftover fish food and uncured gravel all contribute to DOC. Dissolved organic compounds can cause "toxic blooms," whereby microorganisms growing in the DOC deplete the oxygen in your tank and cause fish death.

What cause cloudy white aquarium water? | Algone

I have 4 parrot fish, 2 blue arcua and 2 kissing guarumi. Tank and heater is second hand. Water is always cloudy and the heater goes way high Continuing Paul and Jen’s saga; they emptied the tank and completely rinsed the gravel. The tank was refilled with water treated to remove chlorine and chloramines, a few easy to grow aquatic plants were added and they began the ‘fishless’ method for cycling their tank. All seemed fine for a couple of days until the aquarium water suddenly turned green. It looked like pea soup. The green color was the result of a massive algae bloom instigated by the tank being blasted from direct sunlight from the large picture window. Rather than move the tank, they conducted a partial water change and chose to block the direct sunlight by installing decorative aquarium background material outside of the tank along the back and sides. Additionally, the window’s shades were closed to prevent most of the sunlight from striking the tank. Surprisingly, green water reappeared. Consulting with an experienced aquarist, Paul and Jen learned they were perpetuating the problem by leaving the aquarium light running 24/7 and should connect the light to a simple on/off timer. They also learned that green water can result from excess nutrients building up from overfeeding and from a lack of regular tank maintenance such as partial water changes.

Poorly rinsed gravel in a new aquarium can cause white cloudiness

Normally, they did gravel cleaning and a partial water change a few days apart from filter cleaning. What they experienced is called a bacteria bloom which is a sudden increase of bacteria in suspension. The bacteria reproduced so quickly that they actually became visible like fog. It is the prevailing cause of cloudy water. Bacteria blooms are usually seen in tanks that are not completely cycled or in an established aquarium that suddenly experiences a massive cleaning. Other causes of bacterial blooms are from large quantities of dissolved organic compounds (DOC) which include uneaten food, decaying plants or dead fish.

How to clear cloudy aquarium water | Algone