Was your fry tank well cycled? I think this is where I went wrong with my Kribs, the tank was super clean no substrate or anything, now this tank I raised the Elliot from a couple of weeks old, (the parents were moved away from the plecs, but the dad started eating them) and I have just had a pair of convicts spawn in the tank, removed the parents (had to split them up the male tried to kill the female). Although I keep the water clean with water changes daily and a well over sized filter, the tank itself is (what I would call) dirty with algae growth on the glass, I dont know if this makes any difference but I have sucessfully raise 2 sets of fry this way (so far). Its all a huge learning curve for me.
dont mean to sound just like wha you have said but the tanks was the tank the eggs were laid in and it had been up and going for about 2 mnths nw and there is also algea on the glass it produces alot of it haha i personally thnk it was the air stone thing i had it going but not near the eggs and was turning it off at night
could that be the culpret? thanks for the advice i appreciate it 
i will just do what you have done then i wanted to ask awell weather you think a red devil will be able to berrd with a flowergorn? o think so because i read up about the flower horns and come accress somthing saying that there is red devil bread into it already but it dny know? thanks
, its all just from personal experience, you read so much stuff on the net that makes no sence at all sometimes, but occasionally there is some good stuff too.
how are the doing today? i have some bad news tho 
so i am gunna try and get a new one to day 
thr in with a 11in flowerhorn, red devil, jaguar,tilupias an a 4in flowerhorn 
