Does it make sense??

[chns0289]

Liverock is supposed to provide a surface or pores where beneficial bacteria will form a base to provide biological filtration. However, will coraline algae not close all the pores and reduce the rock's porosity?

 

[Steve Richardson]

to some extent.. yes...though it still maintains a biofilm - and not all nooks and crannies get plugged up. Tiny fissues, sure. Live rock denitrication powers are overrated IMO in comparison to say a deep sand bed.

That of course doesnt mean that LR is useless...

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Baking Forum

 

[phillips]

I recently installed a ph meter in my reef tank so I could gauge my kalkwasser additions. I noticed my ph would rise from 7.9 in the morning to 8.4 at night as all the various algae (coralline, macro, zooanthellae, filamentous) consumed the CO2. With all that CO2 cunsumption, the algae must be consuming a lot of nitrogen compounds. In a reef tank with a lot of coralline & zooanthellae, maybe most of the ammonium is taken up by the algae before the bacteria convert it to nitrate and nitrite?????