So my next spawn attempt will be a crowntail pair and i was planning on doing it in a bare bottom tank. This isnt my first spawn but its a little different from what i normally do. I tend to do more of a heavy planted more natural method with out a filter so there are micro organisms the fry feed off of until they can eat micro worms ( thats another question how long until you move a micro worm culture to a fresh batch of yeast). I have a ten gallon tank and a large mass of java moss I was planning on adding but for anyone who use a bare bottom method is there any trick to make it work the best? Also do you cycle the water in the tank or add water from a cycled tank? and do I have to buy a sponge filter?