-Just feeding tap water for now.
-Transplanted the peat plugs into a solo cup with coco in it.
This is what I like to use for all my seedlings planted in solo cups. It keeps the air to water ratio perfect..you cabt overwater a young seedling this way as long as.you have drain holes.
Coco is the best to start a seedling. Even if you dont use it to grow in your final pot