This White Stuff Start Popping On My Fish Tank From The Inside

This White Stuff Start Popping On My Fish Tank From The Inside
what is it & is it bad for my fish , by the way I am trying to cycle my fish tank with fish in it ?






in this picture the small participial that you see , it's small air bubbles

info about my fish tank
how old is my fish tank :
almost 1 week
did I change the water :
yes I did 30%
fish in it :
2 goldfish
Filter :
I am using a 1200 L/H Sponge filter / Air Pump

 

I'm pretty sure that is Calcium Build up.

 

I'm pretty sure that is Calcium Build up.

is it bad for the fish ?

 

is it bad for the fish ?

If it get's to the point where you can barely see into your tank it could be. I would use a sponge with white vinegar to remove the calcium

 

I also think it might just be calcium deposits, which are okay. You can scrub them off but use a new sponge, one not treated with any antimicrobial/antibacterial solution. You could try a vigorous rub with sturdy paper towels too.

 

Calcification- harmless mineral deposits from tap..

 

Touch some of them and see what they feel like, slick or slime like means heterotrophic bacteria. They produce slime so they can attach themselves. That would be my guess over the calcium. One way or the other neither are harmful so clean them off.