Bubble From Gravel

[F4A]

Today I've noticed there are a lot of bubbles coming from the gravel, this is very unusual and is something which people normally only see when setting up for the first time when air is trapped. I haven't made any changes or done anything to cause the bubbles except use Tetra NitrateMinus yesterday. Is this the cause of the bubble, and if so, why?

 

[joy13]

It is probably anaerobic bacteria. How deep is your gravel and how do you clean it?

 

[F4A]

Is that good or bad?

Roughly 1 inch, and is cleaned weekly with a vac.

 

[darby]

I've seen carbon that aerates your tank in case of an extended power outage. Looks just like gravel. What color is your gravel?

 

[F4A]

White and Black, why?

 

[siva]

MTS can help aerate your substrate and prevent that from happening.

 

[Mr. Limpet]

MTS can help aerate your substrate and prevent that from happening.

Will they work in gravel?

I thought they're sand only, to burrow.

Sent from my Epic 4G using Aquarium Advice App

 

[siva]

Oh they are all through my gravel. I did a substrate change recently and it was tedious.