ive been gifted some fish but know next to nothin about themy guppy had 34 babies 2 days ago,they are fine in a tank on their own.i could do with any tips on how to best care for them,also when should i do 1st water change and how much(tank is 2ft)also they have already doubled in size,how big will they be in a month and when will i be able to tell males from females? ta. sam (clueless)*PEACE!*