a couple plants have discolored leaves?

they are only 2 weeks old. have been given nothing but tap water. the hp is 6.5 and the ppm is 540. what do you think is wrong with my baby's?

Those are lil plastic cups? Check the roots and repot asap. Patches of crispyness on the leaves usually means Phosphorus deficiency. If the roots look ok, you should still repot but try giving them a light fertilizer tea with all three macronutes as soon as you can. A light Guano and Kelp Meal tea should work wonders.

I think the repot is because a clear pot will allow water in your medium to be exposed to light, and therefore grow algae.

tap water could be your problem. try distilled or RO water

there is a plastis cup with electrical tape on it for a outside cup. light never touches my roots unless im taking a look at the roots. will post a pic tomarrow of roots.

Germinated seeds should be planted in a fairly inert medium like seed starter soil because they can't handle most fertilizers. Since there are no ferts in the soil, seedlings need to be transplanted into fertile soil when the 3-bladed leaves start growing in or they will start drawing nutrients from previous leaves. Regardless of nutrients, all plants should be out of the little plastic drinking cups by the time the 5-bladed leaves appear, at the latest imo.

i wait i have a decent roots showing before i transplant. i lose less plants on transplant that was atleast for me. i'll take some more pix here in a little bit to post.

here's some pix i just took. this is the soil its in. its what was already at my house thats why i used it to start with.

looks stretchy. repot, make sure ur lights are close.

my light is about 1/4 inch from my plants. i wait till plant is touching light before i move it.