Nute Burn? Splashing? HELP! Please?

Can somebody please identify my plant problem? Its about 2.5 weeks old right now. When it was a seedling, yellow spots appeared, I thought it was from the drip ring splashing and burning them. Then as it got a little bigger, the tips on the first fan leaves started to brown, so I thought maybe it was a nute problem. I reduced to 110ppm. Now the second set grew in and are looking wrinkled. I've inspected for bugs but havent found anything. I'm using Sun Blaze T5 four 2 foot bulbs in a PowerGrower Eco. Last week I switched to RO water. Nutes are GH Flora with a small amount of cal-mag added. I have since buried the drip ring completely. Thank You

Bump up the jam

Its kinda hard to tell, I dont know that much about hydroponics im a soil grower my self, but usually in soil when a plant starts to get dead tips most of the time its because the plant is alittle over fertilized. Another thought is that is may be some sort of Nute Def., but im no expert on plant diseases so dont quote me on that. Hopefully someone on here thats more experienced can help you out, Im also having a problem w/ my plants thats affecting them all and ive been on the internet for the last week trying to sort it out.

Yeah, thanks for the reply. At first I thought it was nute burn. So I dropped the PPM. Maybe I'll go even lower. Right now its around 110. Maybe I should just not use any nutes for a day or 2?

anyone else got any ideas?

Please help, some of the yellow spots have now turned into holes. I dont see any spider mites or webs or any other insects. I will post more pics tonight

Here are some new pics. I found one of these insects flying around, Do you know what it is? Could this be the source of the little holes? Tonight I flushed with clearex(40ml in 2.6 gallon res) I let the system run for an hour and a half. And then I emptied and filled with pure RO water. I then added 1ml of cal-mag. Hopefully they get better.

idk man thats weird umm yea a very slight nute burn but other then that, do you mist her and keep her under the light that can cause light burn on her leaves kinda looks like that a little idk tho man i tried to help but thats all i got lol good luck she looks great.

Yeah i think the bug is a fungus gnat. I killed a couple of them. I put out a cup of apple cider vinegar overnight. But I didnt find any floating this morning. I also sprayed the hydrotn with Fungicide 3 in 1 in hopes to kill the larvae

The leaves are curling even more now. I dont understand. One of the leaves feels dry.

im sooo sorry to say it sativa, but its aphids...I just woke up this morning to find my plants roots completely covered and infested......my entire garden. I did not catch it any where near early enough, well maybe early enough to save, but not early enough to prevent my entire garden from being touched.. you however look like your ok but your plants look like mine in their earlier stages...Im not exactly sure how to treat it...i went to the hydroponics store and found a non toxic pesticide called gonats, i mixed it with my water, and mixed a spray bottle up as well, i pulled each and every plant out sprayed it on top of the rockwool and on the roots themselves(because they were covered in small tiny little green black and brown bugs). Like you say no major visible damage or bug infestation, a few fungus gnats flyin around occasionally..(the bug next to the penny)...but underground is where the destruction is forming....do something soon.

dude that looks like overdose to me.. what you giving then babies