You ARE overwatering if you are doing it EVERY OTHER DAY.
You are also adding more nutes / supplements than you need.
FFOF is highly amended RIGHT OUT OF THE BAG. It will carry a plant well for 6 weeks all by itself. So basically you are charging an already charged medium. FFOF is prebuffered at 6.3 ( from the oyster shell element ) .
You didn't say what other AN nutes you are adding but I am sure it's only compounding things. You should be on a BLOOM type feed by now ( lower N - higher PK ).
Leaves will show those particular issues from overwatering and over fertilizing.
If you are using water stripped of CALMAG then you can use it to replace it - RO WATER and such. But if you are running say municipal water ( TAP ) then it's " when " needed.
Keep shit simple ....
Water " when " needed ... Not on schedule .. Plant will use what it uses , if you keep drenching medium , you risk suffocating roots , causing uptake issues , etc.
Make sure container drains properly ....
PH water BEFORE
@6.5 ( ph pen ) when doing plain watering AND AFTER you mix up a feed. The " inbetween " watering will help leach out / break up any salt buildup, so " flushing " is unnecessary....
You do show some clawing , so by sticking to a " water diet only " for say a week will allow plant to naturally burn thru the excess before having to be fed again. You cannot expect to throw everything and the kitchen sink at a plant and expect it to NOT have some problems. Ensuring you have good airflow will aid in balancing how quickly it will have dry periods. Excessive moisture will bite you in the ass ( bud rot , root rot , powdery mildew and bugs. )
You have a chance to reverse course.