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The more info on everything about your grow is needed. The more detailed information we have the better we can help you. A leaf turning brown at the edges could be many things. It could be one issue or a combination. That's why we need more info to help.
Things like
what strain
how far in flower
what type of growing style
temps and humidity
feeding schedule and at what PPM
Light schedule and type of lighting
ventilation of grow space and fresh air intake
is it a sealed room
one plant or all. how many plants
what type of fans and where
I mean there is so much as you see. Help us help you out!
Have a great day. Peace, negative.
All the leaves makes overfeeding favourite. We tend to look at deficiency problems, first thinking if it's the top or bottom of the plant. Being immobile or mobile elements as a narrowing of our choices. When the whole plant presents any sort of toxic looking signs, then over feeding is a good possibility. There is some expectation of burnt tips on older leaves first, as they have been taking on food longer. Serrations can burn and go crunchy. Plants may take on a darker colour. Leaves could curl under. Growth may slow and growing tips stay pinched closed and smaller. It all depends what part of the feed becomes toxic first.
Have a look at the pinned topics in the infirmary. Stitch and Joe have good photo based topics there.
Yes, you are using too much Tiger Bloom and that is causing leaf bronzing. Do a pour through test and get a reading on the discharge water. It should be held around 1200 ppm or 2.4 EC.
Always check ph first when leaf issues arise. Ph can lock out uptake of certain nutrients--making the plant display signs of deficiency, which messing with the nutes won't help, only hurt. Always check your ph.