Another Tropicanna grow. I will try to resist the urge of Lst her. She is a very quick grower so I fell it might be beneficial, but will see how she is, and then will decide.
Peace!
We're currently growing the same, and ours at week 7 look like yours at week 4... We're new, but thought we were doing it "right" enough, until we started looking & comparing... We obviously need some more practice! But your pics, etc, have given us hope - your plants all look beautiful!!!