ok, yeah.
as fangthane stated, you're also missing some nutrients.
if you have a home depot nearby, you should grab yourself some dry amendments (dr. earth) for top dressing
(all purpose)
Growing rich tomatoes are made easy with the addition of this DR. EARTH Home Grown Tomato Vegetable and Herb Dry Fertilizer.
www.homedepot.com
or perhaps some liquid alaska fish fertilizer.
(for Veg)
Lilly Miller - 32 oz. Fish Fertilizer Eco Options - All purpose deodorized fish emulsion fertilizer. OMRI listed, approved for use in production of organic food. Use on all indoor and outdoor plants, will not burn. - THD SKU# 970352
www.homedepot.com
(for Bloom)
there are TONS of fertilizers and amendments out there. i personally use these as they are cheap, effective and readily available (to me).
give them some water and some more balanced fert (more nitrogen - the N of N-P-K) and you'll see them pick back up.
good luck with your grow. you're almost there.
(start collecting glass jars for your dry/cure!)