what's up? she's deteriorating quickly

Hey guys White Rhino in flower, I work away and my girl has a helper to get watered.

This is happening, started yesterday, much worse today.

Help eeeeeek

Is in soil - plagron royal mix, bat guano fertilizer n tapwater. Has recently been given magnesium.

Many thanks in advance

This was her

How recently was it given guano?
What did you use for magnesium?
When was the last time it got calcium?

Watering schedule?

TBH it looks fried.
Looks like it was originally lacking a little calcium. Adding magnesium has just amplified the need for calcium.
If you added guano too, its just made it worse.
Calcium deficiency starts out, as the plant just being a little "pale". Then brown spots, like you have start appearing.
Adding more of what it doesn't need. Just means it has less of what the plant requires. It antagonizes symptoms further.

Do you ph the water?
Whats the ph of your soil?

Need info please.

Yo Tim many thanks, I get what you mean and I appreciate your time heaps. It's my first indoor grow so a bit new to me.

So ph of soil is a little over 7, as is the tap water. She's watered 300ml or so per day, often given time to dry out. Is organic soil grow so hasn't been flushed yet.


She was last fed bat guano on Monday - 5 days and also given pure magnesium from a magnesium supplement pill. Mixed in water.

Thanks

No problem dude. Yeah heavier waterings. But less often. So you leach a little out the pot each time. I like to water 1-2 times a week.
Id be inclined to take my chances, and let it dry out. Then give it a really big drink of plain water. To leach it a little.
Maybe top dress a little peat moss for acidity. I like sulphur myself. But you want something a little more forgiving right now.
IIf you're going to use a lime. Gypsum will be the fastest source of calcium.

Imo,
Dry it out
top dress with some gypsum
Lightly mulch with peat moss
Water it right in.

Good luck op

root rot