what does brownish spots mean?

[Toua]

Hello guys im a noob at growing and i need help. What does the brownish spots mean?

This is a soil growth about 3 and a half weeks old with fox farms soil, and four 26w CFL lights at 18 hours on and 6 hours off.

i think its because of heat but i have two air filters going on high and the temp stays around 80 degrees.

 

[haloman420]

It could be a ph problem. It could be nutrient burn which means to much nutes to fast. It could be the light is to close.

 

[newb weed grower]

uhh that all is on the spot if its gotten worse flush ur pot with alot of water
if thats doesnt fix ur missing a key ingrediant i cant think of its name
but i dont think thats a burn it looks like its missing something

 

[newb weed grower]

but dont ADD ANYTHING TIM U FIND OUT WHAT IT IS

 

[Toua]

i always water it with water from my fish tank which it's always at a ph of 7. i have my CFL's 5 inches from the top of the plant. i havent given any nutes yet. maybe the soil has to much nutes?

 

[Miles Joyner]

do fish live in your fish tank? Maybe fish waste and micro fish food particles are being watered into the plant and is harming it

 

[*BUDS]

i always water it with water from my fish tank which it's always at a ph of 7. i have my CFL's 5 inches from the top of the plant. i havent given any nutes yet. maybe the soil has to much nutes?

early signs of nute burn. flush them out and after a week re-pot them in a nuetral potting mix and control the nutes yourself.