I hope you know like if its a new tank that to add only two per week. The best,easiest, and most obvious way to do is to get a ziplock bag dip it into tank to get tank water into it take your net scoop two fish out put them into bag ziplock the bag walk over to your 29 gallon tank, turn 29g tank light off, set bag in tank for 20 minutes, open bag, take another bag and scoop some tank water from 29g tank and pour into bag with fish, close bag, wait five minutes, take net and scoop fish out of bag, release them into tank, close lid andthen wait two days before turning the light back on and during the two days with the light off don't feed them because if you feed them with light off they will think that when the light is off it is safe and then they won't eat when the light is on nor will they swim around when light is on. So for example if you did this on a friday next week you would do same thing as you did the first time then repeat until you get all fish into your 29g. Also good luck.