Fish tank cloudy

[Nemo91]

Forgot to mention the cloudiness

This is common in new tanks. White cloudiness is usually a bacterial bloom, but these bacteria are not the ones we want to grow. White cloudiness can also be dust from the substrate or occasionally an algae bloom, though those are usually green.

The bloom bacteria 'eat' carbon based matter while the bacteria we want 'eat' nitrogen based matter. Bloom bacteria live floating in the water so we see them as the cloudiness; the bacteria we want live bound to surfaces. Bloom bacteria multiply very quickly.
Bloom bacteria are present in tap water and tap water contains carbon based things. When water conditioner is added, chloramine/chloramine is removed which allows the bloom bacteria to start multiplying. The bloom is not harmful, just annoying for the fish keeper who can't see into the tank properly. Once the bacteria have eaten all their available food they die and the water clears. But as every tank is different it is impossible to say how long.

It could be substrate dust if it wasn't washed properly. This dust usually settles withing a few days.

ok. so I have done a full test from ammonia to ph and gh all the levels are fine, i have done a 20% water change and and have re tested after a few days. results are still good the cloudiness has also gone from the sides. i have now added a few more fish to it, as i am slowly adding fish so i don’t ont over load the system.