It is in rough shape.
The advice to look into a better soil is for next grow.
With this plant your in a tough spot but hopefully get through.
I think you will be surprised at the difference a good soil makes.
Your plant looked especially hungry in the 1st picture in the 1st post.
Part of the problem is probably overwatering. It is the most common problem a new grower makes.
It takes time to learn how far you can push this plant.
Learning the weight of a dry pot of soil vs a moist pot vs a saturated pot is all part of the learning process.
The soil you are using is not going to drain as well as ffof meaning it is going to retain even more water.
I haven't used Mega Crop so I'm not sure if that was the best choice. I know it is a good product just not sure if it was what you needed. Anything would help.
It's really a guessing game as to your best move without following your plants progress.
If it was me and we all do things different.
I would have fed it with a balanced dry fertilizer as Michael mentioned.
There are tons of choices. I might choose Fox Farm Happy Frog 6-4-4 or DTE Bio Live 5-4-2 to add some microbes to your soil if it is not to healthy.
Again just me as we all do things different. I would also give it a mild dose of (smells really Bad) liquid fish emulsion, to get a quick boost of Nitrogen in there while waiting for the dry fertilizers to kick in and help the plant.
If you have bag seed you should grow a small plant and then learn how far you can push it without water. Experience and practice along with a better soil will take you a long way.
FFOF needs no nutrients for the 1st 4 to 6 weeks, only water.
I had to go back in my picture files to find a ffof grown plant.
I have used it often and still do on occasion.
This plant was likely fed for the 1st time with a fertilizer at the beginning of flowering.
This pic was from 2015.
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