Thought I would throw something in the pot for discussion out of curiosity. Bear with me on this, its a bit rambing Due to my shrimpy interest I started to take a look into marine Fire Shrimp as a possible future project. However the penny dropped as to the environmental impact of the average marine system. My main objections were to the collection of live rock, corals, and fish from reefs in a non-sustainable way. Looking further into the subject I realised this over-collection was a result of supply and demand; the reef enthusiasts vs. a way to earn a living for the locals. Taking a glance through the marine section of the PFK forum this seems to be a contradiction of ethics on behalf of the 'Tang Police'; being more concerned with swimming space of a particular species when these environmental issues in their own tanks seem the more obvious gripe? My brain is still confused as I look admiringly at wonderful natural looking marine tanks in PFK, and seeing a reef tank for real is something else! However for the benefit of myself I have now found out about tank bred fish (and Shrimp!), tank raised corals and 'eco-rock'. I also know TMC make a great effort to tank breed a lot of their livestock and their wild livestock comes from responsible sources. This site http://www.garf.org/index.shtml also showed some nice eco-friendly alternatives When I woke up this morning this made me think about the impact of the planted tank (as I had one!). As far as my tank was concerned I had only an 11w T5 PC on for 6 hours a day and a 5w filter. Power wasn't an issue with me though as most people burn off more power boiling kettles (guilty of myself = love of tea!). 16w is only roughly a quarter of the average 60w light bulb though. I don't think I can use this line though when I get the space to upgrade from a nano Of course nowadays some peoples houses can even be solar or wind powered! My shrimp are man-made, selectively bred creations that have never even sniffed the wild but I am not sure as to the origins of my Nerites. Can these be tank bred? Obviously the rocks would have been collected somewhere. Would the collection of terrestrial rock for the aquarium vastly change our landscape? (As a side note does anyone know as to where ADA get their sand? I know its lovely stuff but do they do anything else to it other then collect it, bag it, and brand it with an 'ADA'?). My plants would have been propagated by Tropica, but is it possible that some plants on the internet and such are collected from the wild, or does it work out more economical for them to grow their own? What impact does chucking various fishkeeping chemicals down the drain have on a water supply and on our rivers? Does the carbon in the water companies filters absorb this? How does using CO2 injection in a planted tank weigh up say against using a car? This isn't a sudden guilt attack, nor I am I planning on becoming the 'resident tree hugger' merely thinking aloud really. Don't get me wrong I know as the human species we cannot help to an extent causing an impact on the environment from collecting resources (arguably we don't 'need' most of these for basic subsistence so that isn't my issue). The destruction of natural habitats was what got me thinking. I found it the ultimate irony that something that aimed to replicate nature and celebrated it could be so harmful on the environment. I was just wondering however as to everyone else's thoughts on this and where they stood. Do you think this is even a relevant issue to most fishkeepers today?