HELP HELP HELP!!!!!! Whats Happening?????

I woke up this morning and my plants are starting to get spots on them. What can this be? Sorry for the quality but its all I have

Looks like nute burn, or possibly heat stress; but it is hard to tell.

How hot is it in the grow area?
What are your ppms?
(Unrelated to either) What is the ph of your nutrient solution?

Looks like ph issues. But pics are kinda crappy

Cal-mag. Seems to me.

its 80 degrees even and whats ppm? I dont have a way to measure my ph balance. Will a ph tester from walmart work?

get ph test kit from pet store you want ph in between 6 & 7

kingscountyny said:

get ph test kit from pet store you want ph in between 6 & 7

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For soil 6-7 would be ok, but for hydro you need to be from 5.5-6. If you are doing hydro, a ph pen will work best so you can be as accurate as possible. PPM is parts per million, and it tells you how much "stuff" is in your water. Depending on where you live, the "ec" pen could be easier to come by, it is similar to a TDS meter (used for ppm) but the ec reads (and stands for) electrical conductivity. Either one will help you determine if you are over or under-feeding your plants. Both pH and ppm/ec meters are available online for a relatively small amount of money.

Looks like a calcium issue for sure. It would really help us help you if you could give us some information. Like, what nutes are using, and how much are you using. PH is really important, without a meter, or at least some cheap drops you are going to struggle to keep it right.

well I added some more nutrients today and now they are turning out okay. The new leaves that are coming in look very healthy. But from the new node down The leaves have brown spots on the tips of the leaves. They will probably eventually die but tomorrow I will have more pics for everyone to see whats going on. Thanks for everyone's help and if there is something in the house or at a local store to keep a PH balance let me know please? Thanks

Ok well its day 18 and some of the plants are doing good and some others not so well. Some are really bright green and some have little brown spots on them. There is also some white build up on the hydroton That I have no idea what that is. I just ordered the three combo foxfarm nutrient kit and a ph control kit. I still need to order a ppm meter but I dont have the money for that right now. Anyways here are some pictures of whats going on. Please give me some feedback.