n00b needs advice-week old seedlings died inexplicably, what should I change for the

[HARDDON]

I say you killed your pants for the same two examples Zandor related.

MG soil AND fertilizer.

With good soil no need to nute until week 3-4 and then only if it is organic in nature.

5-1-1 is good but only after week 3 or 4....

NEVER BEFORE.

ANd, MG sucks...in my opinion unless you grow vegetables to eat.