About stocking after fishless cycle:
... The amount of ammonia added is far above that generated by a reasonable number of cycling fish, resulting in faster growth of the bacterial colonies, and larger colonies when you're finished. In practical terms, this means that your tank cycles faster (reports of anywhere from 10 days to 3 weeks, depending on the fish tank... compared to average of 4-6 weeks for traditionally cycled tanks), and that you can fully stock a tank when the cycle is complete.
~Written by Chris Cow Ph.D. Organic Chemistry
Of course he is referring to the fishless cycling method that uses measured amounts of ammonia.
http://www.tropicalfishcentre.co.uk/Fishlesscycle.htm
so, as was stated earlier, the six danios most likely provide too light a bioload to maintain the acteria colonies that were established by your fishless cycling. Once the bacteria die back, you would then be best adviced to add fish gradually and watch for mini ammonia spikes with each addition.
As far as your stocking, plan, i really think a 29 isnt big enough for even one angel fish. I have always wanted angelsand did a lot of reading not too long ago when I thought I was going to get a 35 gallon. It turned out thateven a 35 would have been kinda pushing it for angelfish.
yeah you see em in smaller tanks but they are likely young, and or stunted.
I don't know about rams, they are ciclids too, yes? you might check out the ciclid forum for more oppinions.
Several people here , myself included,have observed that cories seem to prefer to school with thir own sort of cory. good idea to get at least three Id suggest staying with three of one type.
I'd say if you skip the angel fish/rams, go with cories, cardinals and a gourami, you should be ok. That would make a nice tank IMO
Be sure you have good filtration, expect to do weekly water changes (maybe 50%. enough to keep the nitrate down to around 10ppm)
without the ciclids who are more territorial than thes other fish, you wouldnt need to worry about who goes in first. when it is time for new fish you can buy whichever looks best at your lfs that day.
ottos are smaller than cories and are really fun to have imo. that substitition would make me even more comfortable with your bioload.
I hope you let us know what you decide.