the tank has ben going for about 3 years but the decent stuff hasnt happened till the last 6 months due to funds. i add ferts but not on a very regular schedule. once a month or somthin like that. but my substrate is flourite with some river rock on top to keep the dust down. then under the flourite i have about an inch of peat moss for the base level of the gravel. all of the wood was collected in my forest an dsome of the plants have actually come from a pond down at the farm.