Hi folks home everyone is well still!

A friend of mine who gave me my ethos clone, is having a problem with the mother.

He says hes using general hydro 3 part plus cal mag. Distilled water in promix hp soil.

The GH is mixed st 1/2 strength and cal mag full strength.

That's all the info I have I believe he does not ph his water or runoff. He's grown a lot of good weed.

Also this is the only pic I got white there unfortunately. He insists it's not root bound in the current pot.

Just wanna see what you might advise him to do?