i've got a very heavily planted tank, occasionally some plants get uprooted, but other than that and pruning when things get too big, it's very low maintance. main thing is to have proper lighting and select the right plants for the appropriate water temperature, i've had a few things die but that's been either because they were for warmer water or simply not fully aquatic plants to begin with. with axies as fertilizer, i never have to add anything to the water in order for them to grow.