nope thanks for asking
I was contemplating just the other night how fascinating the aspect of no circulation aquariums have been
everything you read online is flow, plants need it, fish need it, and especially nitrifying beds need it
and its there just not very pronounced...as crazy as it sounds there are many ways a still tank still has enough motion to do what it needs to do and its not even the obvious such as a fish flicking by
there are temp stratifications that occur diurnally to cause mini turnover, brownian molecular motion, various diffusions going on between bed and water column, plant driven exchanges where their phsical take and gives make variations, all very fascinating and minute.
Every leaf and wood and stone and substrate ball in there is the filter~
now if you want to see something neater, consider still _reef aquariums_ talk about mind blowing. no reef sage on the planet in 2002 would agree you could lump some live rock and coral into a still filterless container and do the same. yet its done en masse, see biotope forum at nano-reef.com
regarding old school filtration, its only absolutely required when bioload X causes ammonia in system X or conditions are not pre designed to support very low fluid movement and super low 02 occurs (evident by fish behavior pre lights on)
no ammonia or trite, no low o2 behavior, no filter needed.
Im surprised nobody mentioned the fish in a half gallon thing yet. My premade answer to that is, the destiny of a feeder guppy just got a massive upgrade and he thinks he's in the hilton hotel free of room and board.
of all the pics posted so far they are all open top so I feel this design element adds further variation and stability. I don't have to topoff, it is sealed from contaminants etc
Last edited by brandon429; 11-18-2014 at 04:57 PM.