chip sanft wrote:Interesting idea! I used to have aquariums and love the look of a heavily planted tank. Since those tanks need a lot of light, I think growing useful plants in conjunction with ornamentals is doable. But I'm not sure I understand exactly what you're planning: Do you mean to grow mint etc. directly in the water of the tank? I think that only plants evolved for an aquatic or semi-aquatic life would do well in that situation. Are you thinking of combining the fish water with an aquaponic type medium for the plants' roots? I think that could work well, provided you don't need to dose your fish with medications.