Deep water culture system problems

Hey guys so i got a drip planter from my local hydro shop. Its a self containing deep water culture system it has a submersible pump that sits at the bottom and it pumps the water up the tube onto the hydroton where my plant is the goes through the hydroton and the water ends up at the bottom of the bucket again.......now i change the water once a week right now and i give it its nutes and keep the ph right...now the other clones that i clipped at ther same time are a hell of alot bigger than the one in the hydro bucket i was wondering why it hasnt grown that much seeing as tho the one in the hydro bucket should be bigger than the ones in soil i was hoping you guy cold help me out and lemme know what im doing wrong....the set up never came with a air pump or an air stone could that be the problem??

dont worry i have pics hahaha
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now heres some pics of one of my other clones that i took the same time i took the one that is in the hydro bucket
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nice plants u got there how far along are they?

2 weeks of being in the hydro bucket i clipped the clones like 4 weeks ago tho

so any insight on this????

Are the roots hitting water? How much water in the buckets? The water runs through the roots 24 hours a day, without a break? I've noticed sometimees that when I have a batch of clones in soil and DWC that were all started at the same timee, the ones in soil usually start growing first, but once that DWC takes off, they shoot past the ones in soil and grow exponentially faster...Usually starts to happen a week or two after the roots hit water, and BAM, they just take off!

Also, once your roots hit water, you are gonna want an air pump and airstone...shit, you should probably have one now.

thats what i figure dude thank man

the broots are still a while from hitting water