Benzelsanswered grow question 3 years ago Too many plants to SCROG. For a tent that size to SCROG you want 4 plants and I count 16.. so yeah I agree go SOG. The idea of SCROG is to make one plant VERY wide.. the wider the better. Where are you going to train your plants to grow?? Into each other?? Leave the net there to act as bud supports but dont worry about training them into a proper SCROG. As it is they are going to be blocking each other when mature.
As for watering- Coming from an aquarium background I had to change 1/4 of the water in up to 18 tanks weekly/fortnightly, and refilling tanks with treated water with a bucket is a pain. Same goes for watering can for plants...So yes a good submersible water pump in a bucket of nutes will work just fine...but my advice is get one that is low flow.. not many ltrs per min or one that is low flow AND has adjustable flow control..it will cost a bit more but if a cheaper one blasts too much water then you will blow the soil out of the pot...so get the smallest one that you have time to run. I have all day so if it takes 60 seconds to run 1 ltr for me I dont mind ..But you may want to do other stuff then water all day. The prob with water pumps is unless you can adjust the flow they really are not worth the hassle as a watering can is adjustable by how hard you pour it.
If you want to mad scientist something anyways then you can go as far as getting multiple sets of clear hose (from say an aquarium store 4mm to 8mm size) and some air/water flow control valves and basically run a seperate hose to each pot with a flow control valve on each hose, and the hoses all go back to one main hose that goes to water pump in a black plastic tub full of nutes and you set the water pump on a timer..and then spend 2 hrs or more adjusting every flow control valve on each hose until they all flow the same amount (and you need to time/measure each hoses output with a measuring cup and timer) and when they all flow about the same or exactly the same ideally, then you set the timer and monitor it closely and tweak it as needed. Its a ton of work, BUT it is fun to do.. I have done it and it works well but Im also the kind of person who loves going over board.