Well think of water as inert media like perlite or coco it adapts to the nutrient level because the nutrients have more dissolvable solids to be able to be read by a tds meter… perlite and coco have 0 influence on ph so I believe its ph is 7.0 as it is inert meaning non reactive…pure water…very tough to get actual 0 ppm water and be able to supply it steadily without buying bottled or replacing filter often… (not realistic so 30 to even 60 70 ppm is still acceptable to me under 100 I dont bother doing anything to besides letting it breath over night… breathing helps release volatile chemicals in water that can be added by water treatment facilities to keep water clear and not have bacteria and nasties… chlorine. Ammonia… chloramines (well water had alot ) all stuff that can kill micro biology in your soil …(no bueno) it kills good bacteria and bad alike… if your using non living system not a huge deal right out the tap… but well buffered lightly charged soil ir soiless like fox farm or promix usually is spot on 6.5 and pure water will adapt to the buffering of the soil and take on the 6.5 if the soil because there is a high concentration of influence then what’s contained in the measly 30 ppm of the starting water so your soil now goes to Xppm + 30 from your water charged soil usually get 2000ppm plus run off reading when fresh and drops over waterings and as plants grow either way it’s in there and its non negotiable unless you purposefully wash it out with makes it dang near pointless to bully in the first place … that’s y it’s good to use seed specific dirt for seeds it’s much lighter on the nutes…
For instance fox farm ocean forest …notoriously hot for young plants even virgin bigger plants that havent seen much nutes…on the other side fox farm light warrior has a much high perlite to soil mix and mix is much smoother for young plants… the perlite promotes more root growth due to the airiness of the soil in turn gives the plants a kick start instead of a kick STUNT
That’s the soil they are in
The new growth looks just fine
Thanks 
@Eagles009 @sparky66 @fano_man @BeenDannyG @Eagles009
Question do you see the leaves at the centre growth it’s seems like the leaves 
are curling up a bit might it be heat stress ?
Could be …give em a day to see if the unfurl anymore some times they take a lil to unfold
Reason being the lower fans are nice a flat no canoeing
I waterd the plant that I posted cause the lower leaves felt dry to the touch and so did the soil I think I messed up for some reason I guess I’ll see tomorrow what it looks like if so I guess I’ll have to wait till she drys the soil out I have them in one gallon pots maybe I’ll wait a week this watering game I’m having trouble for some reason wish me luck
Its though to get watering down… good rule dont soak the pot untill the leaves are well over the edges of the rim… you can always add more you cant take it out
Yes thanks I’m trying to learn pot weight as to when to water wish me luck
You got pics of underwater plants post up please
Just an update for everyone who is here thanks for the help I think they looking good her are some pics maybe one is a runt I’ll still let it grow and see might not be worth my time but whatever
They look fine!
Looks healthy to me. Amazing how different every plant is
Looking good so far 
It’s amazing
@fano_man how often do you change your pre filter min was pretty bad was restricting the flow on the t6 plants also have small specs of white stuff might it be that my eater is well water and it’s kicking up calcium into the tent gets on my plants and plugs prefilter ???
Hmm I’m assuming your talking about carbon filter can … white can be mildew some kinda fungus…um might be hard water if your wild with watering lol I dont use carbon filter I let it fly one of the few things I dont use often… also dont use really any ventilation beside box fans because I grow in bed rooms and its central ac and I just exchange the rooms with my whole house it stays under 78 all the time
Ya thanks it’s is from hard water going to use RO water for now