Fish tank going green after full clean

[YoshivsJoshi]

Hey, I’ve fully cleaned my fish tank and also the filter has been cleaned, this is the first time I’ve ever encountered this problem, I had more fish before this and never had any problem, could someone please help I’m extremely confused, also theres maybe 7-10 snails in there small ones

 

[Back in the fold]

Is the tank right next to a sunny window ?

 

[YoshivsJoshi]

Is the tank right next to a sunny window ?

No, but the tank has been in the same place for about 4-5 months

 

[Colin_T]

It's probably because you cleaned the filter. If you removed/ replaced filter media/ materials, you got rid of some of the beneficial bacteria and the nutrients in the water are feeding the algae.

There also doesn't appear to be any live plants in the tank. So any light will encourage algae to grow.

Either add live plants to utilise the light and nutrients, or reduce the light.

 

[itiwhetu]

The more live plants, the less algae you will have.