Who said Jiffy pots are bad? For seedlings I like those things they work better then Rockwool. You can wash off the roots and transplant them to Hydro or grow in dirt.
They are pretty generic and don't have any nutrients just stick with RO water through the seedling stage. Another thing seedlings like warmer soil temperature like in the 80's. A humidity dome helps to keep the seedlings moist. Don't over water only water when they are dry. Roots grow best when they need to work a little to find water. If you use Anti-wilt spray there is no need for a humidity dome. What lighting are you using and what is the temperature at the top of your seedlings?
Zandor Reviewed by Zandor on . n00b needs advice-week old seedlings died inexplicably, what should I change for the Basic info: bagseed, 1 week old seedlings, first grow had 4 seedlings, one survived, bout 1-2 inches tall total 105 watts in CFL and reg FL, each bulb is 2-5 inches away from plants using some time release MG copycat-typesoil and small jiffy pots water daily or every other, when soil is dry put 1/2 teaspoon MirGro in water at first, now not using ferts till it is healthier grow room is bottom of a large closet, door open a crack for ventilation I germinated and planted 5 seeds in Rating: 5