Hey guys first time grower long time smoker, got it off a mate and apparently it’s a clone of White Widow and Afghan Kush. Been feeding some vegetative stage growth for 4-5 weeks then it started to flower so I swapped to a flowering stage nutrient, didn’t realise it had 0 calcium in it either but after that feed it either got nutrient burn or is deficient of something as you can see the curling leaves and discolouration on old growth. I haven’t trimmed in flowering stage also as I was scared to shock.
First time Grower Deficiency identification
- Thread starter Whew
- Start date
Renfro
Well-Known Member
Looks like a ruderalis.
Yep, ruderalis = auto
Definitely looks like it needed some calcium. Are you using filtered water?
Just tap water, one this showed I gave it some Seasol
Renfro
Well-Known Member
hmmm... it has some calcium in it (just looked at the analysis) but I am concerned about the much higher levels of NaCl. I would imagine that enough calcium would bring along way too much NaCl (table salt).
Really not a product I would be prone to using.
Some good old fashioned calmag (calimagic is my favorite) would be much better IMO.
Hydro4life
Well-Known Member
Autos are known for calcium deficiency’s. Add a cal/mag supplement 
reza92
Well-Known Member
I know this is a few months old but no one really answered your question. your pushing too much k and not enough p (imo anyway) you probably won’t find anything at Bunnings that will be that great. Try your local hydro shop (or eBay) for a cheap 2 part nutrient.
Lagged
Well-Known Member
What's the significance of asking if he's using filtered water? Is that a no-no?
Renfro
Well-Known Member
Filtered water has no calcium or magnesium in it where tap water typically does have these minerals. Using RO water you basically MUST use a calmag product.
Lagged
Well-Known Member
Renfro
Well-Known Member
Of course, sometimes the water has too much of something and filtering the water means you are always starting with a clean slate. Low PPM (<200) tap water can often be used just fine without calmag or with very little calmag, or maybe it has enough calcium and you only need a little epsom salt for magnesium, but filtered water eliminates the guess work or having to get the water lab tested.
Lagged
Well-Known Member
So really the only detriment to using filtered water is it takes out the calmag?
Seems like I should just get some calmag and continue using filtered water instead of using the tap. Back in June there was a problem with the cities water where we were advised to not drink it unless we had a secondary filter lol
Renfro
Well-Known Member
It's not really even a detriment, since you now have a clean slate and can add what is required. It's not a variable either, so if tap water quality changes it wont matter. That happens a lot out here since we are on a reservoir, the res turns seasonally and the magnesium content varies widely.
So really the only downside to using an RO filter is the large amount of wasted brine water, higher water bill and of course expense of changing filters.
I recommend using Calimagic from GH, with 0 PPM H2O I recommend 5 mL per gallon, add before base nutes.