PH and Nutes

Hey Everyone.
Want to start by saying I'm a noob and this is my first grow. I was wondering about the PH of my water/nutrient solution and If I should be worried. I'm using ff ocean forest with 1 gallon containers. My plants vegged for 5 weeks and have been flowering for about 20 days. When I add molasses and nutes to my water and check the PH of the solution it reads about 5.5. I know this is too low, but read that the oyster shells on in the soil are used to stabilize the PH.

Most of the plants seem to be budding well, (Here is a link to my album) Marijuana Growing - tiredofbuyingit's Album: My First Grow, but 2 have a little bit of slow growth and one has a dying leaf issue. I'm thinking it's a nutrient def. so that's why the PH has concerned me. When I take PH readings using the soil tester it says to make sure the soil is completely wet, but I'm feeding the plants every watering and essentially testing the freshly fertilized soil. When testing the soil after the watering it usually comes to about 5. Does it take a while for the oyster shells to bring the PH back up? Should I be concerned. I would have taken pics of the leaves, but I left my camera at work.

Thanks in advance for your help

i'm a noob too , ph your water before adding anything to the water. then add your nutes. oyster shells i think work slow unless they're crushed. i would feed every watering, every other watering. soil ph should be slightly acidic in the 6.5 range. my biggest problem is overwatering. i have learned that plants grow quiker and healthier whan they suck up all the water it can!!!! good luck hope this helps

Thanks for the reply Attitude. It took me a while to get the watering schedule down. I'm currently feeding every watering. My PH of the water by itself is right at 7, but when I add the molasses and nutes and check it again it's more like 5.5 I was just making sure that I shouldn't use PH up solution to raise the PH of the mix of water/molasses/nutes before adding it to the soil.

after you add your nutes and supps. then ph. you should not be feeding more than once a week in soil. in between feeding should be plain ph'd water. as long as you ph everything that goes in/on your plants, you should be fine. 6.5 is optimal in soil.

Thanks Silky. If I find that the soil PH itself is low what do you recommend I use to boost that?