Lol I'm sorry I meant a wetting agent, just helps evenly distrubute and help soil soak up the water... lol basically dish soap.... EC is electrical conductivity meter, short explanation is its a way to measure your feeds and their strength and to see what the plant is using up or not... I think investing in a ec/tds/ppm meter is well worth it if your going to be growing with coco.... Also i forgot to mention earlier when I water I always water till about 10to20% run off.... Once roots are established in coco it's almost impossible to over water them... I love tinkering with my ladies and dont mind the hand watering sometimes upwards of three times a day! Also have grown some really huge monsters in smaller containers of coco... If you can go small container and really cut down on the strength of the nutes and feed multiple times a day, the plants will surely beast!
Sorry for all of the questions, but are mosquito dunks necessary for plants grown in grow boxes?