your first grow and you have coco coir perlite and a blurple? and the cat already topped your plant? it may turn out great get some dr earth pump and grow 222 and give it 1 pump
Measure your water for base level ppm and ph, look at local water report for calcium, etc levels.
Get 2 part nutes, skip all the additives, keep it as simple as possible
Get a ph test strips, or a meter and calibration fluid.
Get a cheap EC meter, bottle calibration fluid.
Coco is actually really easy if you have the tools...meters.
I actually have no clue, I found the seed in a blunt lol, surprised it even sprouted, my plant doesn't look to great right now, not sure it will make it.