Weird looking Babies in RDWC

I’m trying to figure out what the issue is with 3 of my plants on a 12 site system. Below are pics of the three and the other two are examples of what the healthy ones look like.

Setup: RDWC medium-Plants 2weeks old
All flavors from Mephisto
Athena Nutrients(Used the recommended dosage of 800ppm, should I drop it?)
Room temp fluctuates between 68-70 degrees
Water Temp is on the lower side of 69 degrees
RH fluctuates between 50-60
Growers Choice E720 at 50%

First, do roots touch the soup and are the net baskets totally clear? Who told you to start that high? I'll suggest 250-300 PPM. Measure EC and pH daily. If they drop that initial amount then up it around 150 PPM.

hotrodharley said:

First, do roots touch the soup and are the net baskets totally clear? Who told you to start that high? I'll suggest 250-300 PPM. Measure EC and pH daily. If they drop that initial amount then up it around 150 PPM.

Click to expand...

That is the recommended dosage on the Athena feeding schedule. I will drop it to see how it goes. Appreciate you bro

hotrodharley said:

First, do roots touch the soup and are the net baskets totally clear? Who told you to start that high? I'll suggest 250-300 PPM. Measure EC and pH daily. If they drop that initial amount then up it around 150 PPM.

Click to expand...

Also, I’m not sure what you mean by the nets being totally clear. Yes some roots are touching the solution.

DoobieKushington said:

Also, I’m not sure what you mean by the nets being totally clear. Yes some roots are touching the solution.

Click to expand...

You need the net basket at least 1" above the solution. To be able to do this you need sufficient roots. Pour the solution through the net basket from the top a few times a day until growth indicates you don't need to any more.

Again the basket must be totally clear of the solution at all times.