Airation of submerged media has pros and cons.Gr8KarmaSF;2507367; said:Just curious given a wet/dry with 100% various submerged media, do you see any benefits of adding a bubble wand in the sump where the bubbles would float up through and throughout the various media?
The pros are reduction of mulm on and below the media (mulm buildup also equals dead bacteria - even occurs after a fine mech. stage), better oxygenation which increases nitrification, and reduced channelling of water through the filter which means a better contact time and larger surface contact each time the water flows through the filter.
The cons are that if you are also trying to denitrify then you won´t have much luck. Just for the record i´m not talking about denitrifying a heavily loaded monster tank but for instance a planted tank with mixed tropicals (it does work because the mulm is utilised as the carbon source).
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