![]() |
#2
|
|||||
|
|||||
![]() I havn;t vacuumed fmy sand/gravel in 6 months. ANd all is GREAT. yes, the larger stones and such will get coraline covering. But I found, in my tank anyways, vacuuming the sand acctually exposed the anaerobic layer and released more nitrates.
__________________
Dan Pesonen Umm, a tank or 5 |