Ebb and flow Planters

Hi all, thanks for reading.

I am using a 2x4 ebb/flow tray with 6x6x7 planters.

At 3 weeks, I'm noticing that roots are coming out of the bottoms of the planters.

Is this cause for concern? Will these planters last the entire 11-12 week grow?

Here's a pic of one plant at 3 weeks.

Thanks much!!

Your good...roots like the darkness and wont come out much more than that.....I personally would transplant to give your roots structure more room to grow and expand and hopefully give you a nice little "tree" although I've seen nice size bud from small pots...I use ebb & grow now..working out nicely..