Funny story. My 75g tank is right next to a sliding door that leads outside. I always put one end of the pyton in the tank (duh), and the other drains outside. Well, the water flows right into a little patch of garden my Mom keeps orchids in. She also has another orchid in a vase. She went outside yesterday, only to find the one that has been getting nasty fish water has grown tremendously, and bloomed a beautiful flower, while the other (which she cares for a lot more) looks like crap. Now she wants me to keep some of the dirty tank water after water so she can use it to water all of her plants. I thought it was funny lol