Unknow bubbles????

[Owls]

Help needed, anyone know what this bubbles is coming out from my rock with brown substance on top?

http://pbckt.com/pG.uCx5nk

Lights is on 11-12 hours daily.
Dose seacheam excel 1ml daily.
Tank is 2weeks old in the mid of cycle


Thanks in advance

[xconnect.]

maybe their producing oxygen?

[stormhawk]

This is some sort of brown algae. It's fairly normal. Do you have any plants in the tank?

[Owls]

maybe their producing oxygen?

I don't know but can algae produce oxygen?

[Owls]

This is some sort of brown algae. It's fairly normal. Do you have any plants in the tank?

I have Green hair algae as well near my filter inlet.
Kind of funny, why don't green algae grow on my rock?
How to clear away the brown algae?

I have hair grass planted.
Just bought 2 star moss and some riccia, to try out.
Is it true riccia will absorb nitrate?

[stormhawk]

You need a fast growing plant like Hygrophila difformis or Hornwort to out-compete these algae for nutrients. If you don't like the brown algae, remove the rocks, pour hot water over them. Then let it air dry. After that just scrub away with a toothbrush or something more abrasive to remove any remaining algae. if you have Otocinclus, they should be more than capable of removing this type of algae.

As for Riccia, I have no idea. I never grew it before, but only that it's a little bit troublesome if it breaks into smaller fragments.

[Owls]

You need a fast growing plant like Hygrophila difformis or Hornwort to out-compete these algae for nutrients. If you don't like the brown algae, remove the rocks, pour hot water over them. Then let it air dry. After that just scrub away with a toothbrush or something more abrasive to remove any remaining algae. if you have Otocinclus, they should be more than capable of removing this type of algae.

As for Riccia, I have no idea. I never grew it before, but only that it's a little bit troublesome if it breaks into smaller fragments.

Can oto live in high PH?
Read some where in the website saying that Riccia is suppose to be a floating plant. That's why left those bit to float in my tank.

[stormhawk]

Should be able to handle up to pH 7.5 or so. Must be acclimatised properly. It might be faster for you to use the hot water and scrub method.

[Owls]

Should be able to handle up to pH 7.5 or so. Must be acclimatised properly. It might be faster for you to use the hot water and scrub method.

Thanks storm hawk I think will use the hit water method.
Cheers:-)