Help Rust spots yellow tips and holes...

Hello just wondering if i have a problem.. i have yellow tips and rust spots that turn to holes... plant seems fine no droopyness leafs point upwards.. very slow grow i think.. these are under a foot and its been 2 1/2 months..... under 400w mh 18/6 time mg for food... expensive soil... tap water.. havent tested ph dont know how to properly do this.... tested ph of water.. n it was low.... i think.. a 6 ... light is 30 inches away from tops... i think it is a sign of nut burn but i dont know just going off picts on net and forums please help... attached are my photos..

DP420

what's mg for food? not nute burn-looks like mg deficiency

move that light closer, it should be no more then 12 inches from the tops, not 5 feet!

i've read 400 watt lights should be 4 feet away from plants. Could be light burn.

What kind of nutes are you using? You should usually use 1/4 or 1/2 strenght until plant can handle more. Also.. With soil I think you water twice then feed and repeat. How do you do the cycle?

2 1/2 months and under one foot.... Man something is serisouly wrong.

You know what strain u got? Indica or Sativa?

MG = miracle grow... i am reducing it to 25% under hid lights as recommended .. they are all different kinds of strains dont know they were collected seeds from various buds... i was always told 20 - 40 inches from the hobby shop any closer it will burn also the thermomator with the lights at the spot there at shows 79 degrees isnt that perfect... dont really have a regular water feed cycle.. basically i have a squirt bottle add the Miracle grow to it shake it up and spray the leafs and soil.. untill it looks wet .. i put a pencil in and it seems water does go all the way to the drainage so it isnt being over waterd maybe underwaterd just concerned that there are holes in the leafs from the rust spots and its like the green goes from regualr to almost transparent then yellow and when u say mg u mean magnesium??

gardenman said:

i've read 400 watt lights should be 4 feet away from plants. Could be light burn.

What kind of nutes are you using? You should usually use 1/4 or 1/2 strenght until plant can handle more. Also.. With soil I think you water twice then feed and repeat. How do you do the cycle?

2 1/2 months and under one foot.... Man something is serisouly wrong.

You know what strain u got? Indica or Sativa?

Click to expand...

Well that's wrong! My air cooled 400HPS is 8 inches away from the tops, 4 feet is way too far!

its not 4 ft away.. its 20 to 30 inches

cant ne one tell with the photos i gave?? do i need better picts?

corrections water doesnt go all the way to the drainage

ah-hah. I dont think you should be spraying or wetting the leaves with the lights on. that is a quick way to get burnt. I think your light set up is fine. And gangababy was replying to gardenman. are you serious about them being 2 months old? doesn't seem possible. did you mean 2 weeks b/c that looks more like it. and yes, MG-magnesium. I think you may need some better nutes than MG-

check your ph and stop nutes for a day or two

yah two months but... the first month was floresent grow lights and they were in dixie cups when they got a second level i put em potters... i have some all in one hydroponic solutions because i just built my first hydro constant drip setup.. tempted to pulls those puppies out and put em in there .. i also got new seeds started so i dont know if i should just wait on em or pull them up and put in the hydro setup... what do you think .. also .. the hydro food says can be used on soil if dilluted should i use that instead??? Also what is the usuall time frame from seedling to pre bloom 3 months i was told??? and i herd hydro is half the time is this true?? Also from the picts... what would you suggest me do to fix this problem?? Thanks 4 all the help so far...

check out this link on miracle grow plants. Ganja Guerrilla's Hall of Marijuana Plant Abuse

also check out magnesium deficiency-looks like classic case to me.

Starting 2 morrow no nutes.. and i am now going to water untill it starts to drain to test ph someone told me to try that is that correct way to check ph?

what do u do to fix a magnesium deficiency.. ne home remedys?

ph is inbetween 7 - 8 what should i do>?

boy that's alot to answer. cfl's are great for seedlings. you say you moved them did you transplant them from cups to pots? you may have done this prematurely and upset the plant, cause 2 months they should be a foot tall at the least. you should wait for at least some real nodes before moving them. how did they sprout? fast?

hydro drip should NOT be constant-maybe 2 times a day for like 45 mins late morning and than again in late afternoon. you will wind up drowning those roots if it is constant-hydro or soil they will drown.
not sure if you can use hydro nutes in soil-look on the label and look it up online with the manufacturer. and if you are going hydro, than you need something better than all in one. you can probably use that in a very diluted strength in the soil setup. but for hydro, you should buy a 3 bottle nute mix-grow,veg and flower.
what medium will you be using for your hydro setup?

Unless those seed have cracked than cover them with a dark shirt or something.

You have 5 point leaves which mean although the plant is not gaining much height she is maturing. What kind of seeds/strain is this?
You might have the world’s slowest growing plant, lol.

Are you sure this isn’t a joke or you the cops? Something don’t seem right here.

You should know that a PH of 7-8 is waaay off base. Any MG in the plant food could be getting locked out.

Go to the store and get some distilled water-is correct ph and no trace elements. Feed when the soil looks dry at 1/8-1/4 strength nutes you have. Read the directions. Make a one gallon jug and use that for now.

Epsom salts will cure a MG problem which are cheap and sold at the same store as the water.
Leave them where they are until they start taking off and the deficiency is corrected. And don’t get any of the new nute water on the plants b/c they will burn.
There are a ton of resources here in RIU.
Well if you are 5-0 than good for you.

lmao @ cop comment far from it .. ne who... do i add lime juice to the water to drop the ph???? i herd that does it... i did transfer.. from cups to planters... maybe to soon but when i put it in planter roots were all over the cup.. i thought it needed room .. reason for changing... i have been spraying nute / water on the leafs maybe thats the burning ?? epsom salt what should i do mix it with water and put it in soil?? do u suggest maybe putting these in the hydro setup.. the hobby guys said a constant drip is fine its basically a tubby with holes cut in lid.. and baskets holding pellets and a pump in there pumping up the solution / water from tubby to basket .. you say i shouldnt have it constant?? y would the hydro hobby dude tell me it should be on all the time?? also.. its a new all in 1 solution it has the 3 bottle stuff pre mixed....

can i used my perma filter to filter the water?? would that help.. also if u read the whole thread i said the seeds were random various collected... who knows what they are.. there all different thats 4 sure...