Top feed water seedlings in bubbleponics? Slow growth:

I have 3 plants in a smaller Tupperware that are just vigorous! But the plants in my 15 gallon tote are growing a bit slower......Trying to figure out if its just pot size thats affecting it, or I needed to top-feed the plants in the large tote because they are still small:

3" homemade net-pot in small container-->

6" net-pot inside large 15 gallon tote....>

After growth was less in the large tote, i began top-feeding them 6.5 ph tap water last night.

bump~ looking for some bubble bucket growers to give advice on the early stages of it's life: seedlings -> veg state.

Do you top feed your plants if they are on their first 2-4 sets of leaves?