How many fry is it normal to lose in the first few weeks? I have noticed that I have less fry than I did but it only started happening after I started adding water to their tank and also sucking up some of the gunk from the bottom (I used a syringe and made sure to check very carefully how many fry I had sucked up and made sure to put them back in). My ammonia did get up to 0.25 and my Nitries 0.2 but they are back down to 0 but I have sad looking fry now well not all of them sad, only a few but as I said there appears to be alot less. I had about 800 fry to start off with but it looks like I am down to about 300. Other than that most of them seem to be coming along beautifully and are even bigger than they are supposed to be (about half an inch already at 3weeks). Nothing else has changed and I don't know what to do, please help ???