bubble appear on surface of the tank

[Crono]

I have read about them, yet unable found any related.

Brought a new tank days ago, fill it with the same water that I use for the smaller tank. clean it with only water + tissue & sponge (tissue, dirty black). then test if there is any leak or not. day pass no leak, but formed bubbles.
for few days + water change, still coming back.

the smaller tank filled with fish also have bubbles, but this one, too much.

• organic waste = no fish in there, nor food waste.
• saturated oxygen (?)
• chemical detergen = didn't use any

is it fine?

 

[bathawk]

just bubbles will go away eventually. I just setup a grow out tank with the same thing I think it is just trapped air from filling an empty tank once filters are running it soon dissolves.

 

[Crono]

I see... I was worried for nothing.
alright, thank for the info.

(and 7 reply alert in the same thread & from same user?)