Here's a pic of one of them. Not too clear. I left the cheapo camera on again and wasted the batteries. The 3 larger leaves on the bottom are/were yellowing.
My Ph was fluctuating too much. I probably didn't clean the hydroton thoroughly. It is alot more stable now. Between 5.8 and 6.0 the last 12 hours. Checked it about 5 times.

The mylar is dingy. The water is splashing too much off of the hydroton. I either have filled the bucket with too much hydroton or the air pump is pumping too fast. I'll turn the pumps down a bit and if that doesn't work, a cover will be placed over the ring section that is close to the mylar.