Need avice, pleaase help, my plants keep dying :( im losing the plot!!!

im two weeks after germination, i have 8 plants, today i went to check on them and 6 are lying down, the stem base is extremely narrow and almost brown in colour
this has happened once before...i cant afford to be spending so much on seeds for this to happen.
any idea what im doing wrong????
please help
thanks

no pics? its hard to tell without pics....

what kind of soil/medium are you useing, what kind of lights r u useing, whtas the temp of your room what do u feed the plants, just water? alot of things can factor into why your babies are doing this

someone needs to create a form you need to fill out before you post this sort of stuff
would make life so much easier

im sorry to be so vague. they are in rockwool cubes, i feed them a solution of hygrozyme, plant start, bio-pac and rhizotonic. im using a 125 cfl. will upload pics 2moro. temp of room is 22-25 celsius, but my propogator is heated so prob a bit warmer in there

i mean i dont think im underwatering or overwatering. i dont think my nutes are too strong. maybe i shulve taken the dome off the propogator??? i just dont know

It is hard to say what the problem is without any pictures but i would say that you may be over watering.Is the soil that you are useing a mix of perlite and soil if not the water will tend to hold for far longer in the soil base you realy need good airation so that water can get to the plant but it can have a good run off too.I would advice but i'm realy doing this blind has there is not much info but for you next grow get hold of some bio bizz all mix this works out far cheeper than mixing yr own soil up.This soil contains all the elements that the plant will need for at most 4 week at least 2 but i normaly start feeding a little after 2wk.And wet the plant's through but then let them dry out before rewatering,Letting the plants dry will do more good than harm most new grower's think that the plant's have to be constant wet this is utter rubbish when seedling's i like to keep damp not wet through all the time but has the age drying the medium promotes new root growth and we all know it is all about the root sytem....hope this help's tyke................................

thanks to be honest i did think you had to keep them quite damp all the time. but as far as letting them dry before rewatering....im using rockwool, is the princiapal still the same?

just moist with rw and a spray bottle is a great way to do just that

they have died, gutted. hopefully your advice will help me get past this stage next time, thaks guys. any other tips welcome tho