sad plants

hey i have a problem again, i have three plants growing in one pot and two of them are real big but the other one is growing for shit.also the leaves on two of the plants are rolling in i thought this was from overwatering but i dont think it was. could one of the plants be stealing all the nutrients? and the kind of big plants are both leaning what could this be from i checked my p.h. and it was too low slightly acidic could that have anything to do with it? i water them with smartwater and have tried to bring the p.h. up but have been to broke to get a p.h. test so i dont know. and there just growin slow really i have another plant that is by itself and is way bigger than the others when she was at the same age about a month. thanks for any help. even if it doesnt help input is welcome

the roots of the two plants could be tied... never put 2 seeds in one pot.. less ur going to transfer them soon... and the drooping could be watering or ph lvl..

Leaning is fine, its just leaning towards the light source. Its probably stunted from root growth, which is quite a worry.

3 plants in the same pot are competing for nutrients under the surface, and one of them is losing. The sooner you flower, the better. Thin that herd, ya know.
You checked PH and it was slightly acidic, but you are too broke to get a PH tester?????? How the....?
You can get a digital PH tester for 20 bucks on ebay. Milwaukee PH 600.