my impossible dream is a large hermetically sealed tank, with heterandria formosa in it.
it would use a combination of wireless power technology and magnets to allow me to manipulate things in the tank. it would have a sand and crushed coral substrate, slammed full of every kind of worm i can find, and a layer of peat underneath it to feed the worms. it would have a mesh partition in the middle to keep fish out of the other half. both sides would have algae in them. the wireless transfer coils would power a pump to move water from the fish side and spray it over what would essentially be an algae scrubber hanging over the algae side. i would use powerful rare earth magnets to manipulate the growing surface of the algae scrubber so that i could pull it across a plastic blade every once in a while to clean it off.
the algae side would be a refuge for all of the various primary consumers in the tank, all the critters that would serve as food for the fish. for food critters, it would have a lot of different kinds. a few different species of ostracods that all have different behaviors, the worms in the tank, a tiny amphipod i found in one of the local creeks, an odd cladoceran i found living in my pond(its tiny and sticks to the substrate, usually leaning on its side), a tiny snail i found living in my pond that i cant remember the name of... more that i cant think of right now. i have the list written out somewhere back home... its a long list. about 60 different species of various critters.
i would use some UV lights to periodically sanitize the glass in certain areas, then magnetic scrubbers to keep them clean. i would use some powerful UV cutting lasers to kill off critters/algae/fish in order to control the populations and selectively breed for fish that need less food, grow slower, exhibit lower fecundity, etc.
yeah, im a nerd...
Edited by Auban, 24 May 2018 - 04:28 PM.
"The ecologist is continually having to look at the aspects of nature with which he is unfamiliar and perforce must be an amateur for much of his working time.... professionals may carp at omissions, misconstructions, or even downright errors in these pages. perhaps ultimately they may forgive them for the sake of the overall vision that only the amateur, or the ecologist, blithely sets out to experience."G. Evelyn Hutchinson