Please help, thank you.

[Fishscale902]

Hey guys I recently noticed this white fuzzy substance accumulating on my aquarium lid and it’s almost multiplying by the day. Soft at the touch, is this harmful to my livestock ? And what is this. ?
Anomia 0
Nitrite 0
Nitrate 0 normal
PH 7
(Used to have a lot more fish but got rid of a few and a couple had Bactria infections and did not make it)
Currently socking :
2 female blue opaline gouramis. Get together alright. Small “play fighting” here and there. Black substrate, used to be full of live plants now down graded to a few live plants due to filtration issue with small plant bits accumulating around the filter. 1 fake drift wood decoration. And 1 fake Woden ship decoration. Feed them premium flake food , blood worms and some brine shrimp

 

[Byron]

It looks like a fungus or mold. I've never seen this, maybe other members have. Provided it does not get into the water it shouldn't be harmful to the fish.

 

[Colin_T]

If it's soft and wipes off easily, it's fungus and you need to clean it up with a damp disposable cloth/ paper towels.

Wear a dust mask so you don't inhale any.
Have a shower and wash your clothes with hot water (60C), or use an anti-fungal wash on your clothes after cleaning it up.

It is more dangerous to you and animals in the house, than it is to the fish.

 

[Barry Tetra]

I ever had them but after i wipe it off it wont happen again.