When ya say he uses them for fishing?? how dose he use them for fishing?? never heard of this.. is that 4.51ml to a half cup if so thats way too strong.. my feed is measured in ml just add 2ml per litre and ya should be ok. them seedlings are doin good.. never feed seedlings man there too small for feed it will burn the shit out of them and then they will die.. there should be enough nuts in the soil that will feed the seedlings for a few weeks until they get bigger then feed them..