i was just joking about being a meanie... by no means did i do it intentially...... although, i dont think its that mean.. we are just talking about fish here... i kill fish when i go fishing all the time..
. its called using live bait.
.. but, i think i may have just started a new topic of why i am the meanie on this site...lol
but in all seriousness, using live fish for cycling, IMO, is probably the best method for cycling the tank (for the sake of introducing the right type of ammonia on a continuous basis)...
But, the downside definitely outways the upside of this method.
Ammonia introduction can be achieved using a raw shirmp from your local food store... i havent seen any specifics on how many you should use, but, for argument sake, just add some till you see an ammonia spike (maybe one medium size shrimp per 30 gallons of water, but i really have no idea)... once you find how many shirmp you need, I would continously put in new shrimp thought your cycle, and continue this after your cycle... I really belive you have to continuosly feed the nitrifying bacteria that is using the ammonia to turn into nitrite.... The heavier the load, the more fish you can add at a single time without fear of your bacteria bioload handeling the fish ammonia introduction....
In other words, if you want to put in a dozen fish at a time, you can probably achieve this if you add a dozen shrimp to cycle your tank...(i would remove the shirmp after a week, and put in new shirmp...and if possible, get some type of routine where you dont change all the shirmp at a single time... maybe three shirmp at a time 4 times a week...if you have a dozen).....then, you have your nitrifying bacteria handel the dozen shrimp bioload over a months time........ then, once you are adding new shrimp, and your ammonia and your nitrite are 0, and your nitrate is low, you remove all the shrimp and add all the fish, the same day...
this hopefully will insure that your nitrifying bacteria are built up to a level to handel a heavy bioload....
Keep in mind.. i am strictly speaking out of my ***
, i have never tried this, but i really think this would work, and would try this myself if i was starting a new tank.... you also would have to adjust the amount of shrimp based on the amount of rock, sand, water, etc... you dont want to overdo the shrimp thing since i think it would raise your nitrate level very high....
hopefully, some of the more experienced people on this board would comment on this... lets see if my thinking is somewhat right.