one problem at a time lol

Ok my plants look like nute burn according to all the info and pics Ive researched, here is the problem I checked the ph in the resevoir, and also checked under the drip of each individual bucket, the ph looks perfect, right in the yellow (middle of the chart) Yet my leaves look like its nute burn???... Should I flush anyway and restart? Just add more water till it lowers the ph a bit more?.. are they PH locked? could it have something to do with the tubes between the buckets needing cleaned ?...Help Please..
I also spoke with someone at a collective and he said it could be algae? in the tubes the water runs thru...can this cause plants to have the same look as nute burn?

Well if algae is in tubes you can fix it with h202 it should eat it right away. What's the temps in room? If too hot it can cause stress and heat burn that can be confused with a nute burn. There's a book online it's like 15 bucks its called the marijuana garden saver. Great book to own as reference to the problems that typically arrise in the garden. I only see I pic of a sad little kitty on page so just throwing info out from not seeing a pic.oh yea if algea rjun throu whole system to disinfect it's been said u can clean roots too with this method but I don't want to say yes or no just to be safe. But full res clean may be in order. What is ph at if too high or too low it cause the plant to not take up certain vital nutes so may want to check that as well

hey beuffer, yea the kitty lol...anyway, I couldnt post pics need batteries for my camera sorry, ok the temp runs between 70 and 80 I try to keep it at 70 I have two fans on inside that rotates, one out with duct going into the tent for the light....I wondered about that too, so I opened the tent today to cool it off from 80, how long before I see if that has effective results?...(the cooling down) before I move on to trying the algae stuff, I think I will go ahead and put the algae stuff in too, how long about for results to know if either worked and I will get pics on here ASAP, Thank you