gunk on roots...what now?!?!

so either its root rot or some stuff from the nutes im using...its the techaflora recipe for success kit...im at 434 ppm 6.1 pH....water temps are 65 deg F air temps are high 80's..the plant is white berry from paradise and is about 3 weeks from seed

i used 25% of the recipe for this res...and ive heard iffy things about using the thrive alive b-1 red in the hydro system because it has organics (seaweed) in it when all the other stuff is purely chemical based

i should also mentioned ive noticed a bunch of algae lookin crap growing on the walls of my res...i am planning on cleaning this away...unless you think i should leave it there? is it part of the bio system that has established itself? i have no idea whats biologically happening with this now...

im about to change the res and was going to up the veg stage recipe to 50% and leave out the thrive alive b-1 red

is this the right choice to make??!??! is it root rot? should i scrape it off or leave it alone? this is the best looking plant in the group topside so im really concerned

thanks

BD

h202 5ml per gallon twice per week for 3 weeks. 3rd week transition to superthrive at 2.5ml per gallon until flowering.

thanks bwbr..would drugstore h202 be ok or should i get the fancy shit from the hydro store? do i add it before or after the nutes? is the pinching of new shoots the same as supercropping?

thanks
BD

pinch hard enough to feel the pop. do not bend stem.

im gonna give this a shot...ill post how it turns out once i see a change

BD

i explained what i did in my grow journal but figured id post it here too to try n get some additional feedback on the root rot problem:

there are new white roots coming in but down below it are the old slimy roots hanging...what should i do about these?

thx

BD