Bio-Spira help

[kendallb03]

I just got the 8fl oz bottle of bio spira as that was all my lfs had. I have a 30 gallon tank that I just set up. I was wondering how much of it to add as it does not say on the bottle.

 

[mborn]

8 oz will treat up to 75 gallons, so I would use approximately half the bottle. Using extra won't hurt anything.

 

[lion king]

I think it is best to use the whole bottle once opened, bacteria can die and would be useless. I believe it says on the bottle to add entire contents.

 

[Eagle_Steve]

All of it is fine in a 30 gallon. Sadly a lot of the bacteria in bio-spira tends to die due to improper handling.