stem is soft and plant fell over

ok last night i had a fan blowing on my palnts for a few hours. i shut it off before bed.
this morning my biggest plant 8" or so was toppled over and the leafs are drooping. one bottom leaf is turning yellow by the looks of things. this palnt was awsome before yesterday,
i watered it about two or 3 days ago 2 cups of aquarium water.
here are a few pics



this is the leaf turning colour.


a pic of how it was bent, it was bent further then this but i put stakes in before i took the pic, and took them out to show how it was. the leafs were really perky before


the soil ph is 6.8 and the aquarium water i used to feed them is 7

the plant has one 23w daylight cfl, new hps bulb is on it way expecting it in a week or 2.

any thought on what my be the problem? could i have droped the temp to low with the fan? it was on a few hours. not enough water?

oh and i have not used any nutes yet. the plants are in 30% perlite 70% wormcasting peat mix

you need to give that bitch some nutes! she's vegging, and she needs N.
Again, lack of nutes could be why you have a soft stem, she shouldn't be falling over at that size. Use a thick plastic straw, or a plastic stick and bread ties and stand her back up. Don't use wood, it rots and molds.

Try to get your water down to 6.5 when your watering. Between 6 and 6.5 is perfect.. watering with 7 might be too high, so it's not getting nutes from the soil.

basically, exactly what postalman just said.

Try CalMag good stuff for weak stems.

so from when i posted these pics to now the leaves are all drooping right down.
i think i was underwatering it...
i just mixed 1/8 tsp of gh flora grow in with a gallon of water.
and flooded it.
you think this will do?

so in an hour since water/nute the plant is reallllllllllllllllyyyyyyyy starting to come back!
the leaves were almost all touching the main stem and curling up etc.
the leaves are now back to how there were this morning.
crazy how fast it bounced back.
this plant is 4 times the size of the others planted at the same time.
i hope its a female i need a mother!
thanks for the help guys

energie said:

so in an hour since water/nute the plant is reallllllllllllllllyyyyyyyy starting to come back!
the leaves were almost all touching the main stem and curling up etc.
the leaves are now back to how there were this morning.
crazy how fast it bounced back.
this plant is 4 times the size of the others planted at the same time.
i hope its a female i need a mother!
thanks for the help guys

Click to expand...

good to hear they are all good. Need to see some pictures. link your journal if you have one,