need help deciding what to grow! help! setup info

help me decide!

i have a 6 net 10 gallon resevoir with 3.75 inch net pots. i have a drip system going on and airstone in water making bubbles and gonna grow in rockwool with hydroton around it.

QUESTION 1: How tall or heavy of a plant will this setup and 1 of the cups be able to hold? is it gonna fall over if its taller then how tall?

this is my first grow, i am going to use iguana grow and iguana bloom.
cool tube with 600w hps lights w/ 6" scrubber attached and 6" duct insulated with a hydrofarm active inline fan 6" in the end for exhaust. intake will be regular fan blowing air in thru duct opening on bottom of grow room.

my grow room size is 32 x 34 x 63

ok now that you know my specs, this is what i cant decide on and want some input from experienced growers!!


QUESTION 2:

should i grow all 6 lowriders

or

should i grow 5 lowriders and 1 regular femenised seed? (bubba kush)


if i do this, bubba kush will have to be in 18/6 light vegging for 8 weeks (until lowriders are harvested)

then i can switch lights to 12/12 to bloom bubba kush


OR

i could do the same above but instead of just blooming the bubba, can i take clone cuttings from this bubba plant (move em under CFL lights 200-400w total) and BLOOM mother? then move clones in grow room and bloom?


QUESTION 3:

My worries: bubba kush will prolly wanna eat more nutes then lowriders??? will this be a problem feeding 2 different kinds of plants in the same gallon? (my main concern)


thank you!!!!

great no one can help me!!! im gonna start in a few days, waiting for the cool tube to come

Daisy, sounds like a roughneck tub. I have one, it's an 18 gallon and I fill to the 10 gallon mark that I made. I also use 3.75 pots and they are good for up to 4 feet, I only have 3 pots in my system and the lid will start to deflect under the weight of the plants at about 3 feet if they are big and healthy. I would not mix dwarf and regular, you are going to have to set the light based on the height of the tallest plant. Save bubba for another day a full size plant in that limited space will make them compete for light and the dwarfs will loose. Trust me on this, I know, I have done it. Don't worry about the nutes that shouldn't be an issue. I hope this helps and good luck.

thank you!! needed that advice will start my grow in a few days cool tube came and waiting on 1 more thing.

i got the seedling mat and a dome i create from walmart tuperware thats clear on the sides and top i cut 2 holes for ventilation. its 3ft away from my 600hps lights in the cooltube up top so i guess thats a far away enough.

im only going to turn lights on when the seedling has sprouted up out the rockwool, does this sound good?
gonna keep the lights on 18/6 feed only ph5.5 water with ppm140 (filtered water cause my house water is 600ppm!)
until it sprouts up in which after that i will feed small dose of nutes (300ppm? iguana juice bloom all the way thru cause im gonna grow just autoflowers) when i turn the lights on first time?


my tank is 10 gallons, but i only am filling it up about 6-7 gallons
im going to do 5 lowriders, keep one net pod empty so i can stick a large funel so i can pour water in, also my Hanna continuous ph and ppm meters are taped inside under that area to take measurements of the water, i will just tape the top with reflective panda mylar.