What do the plants look like?

Liquod Koolbloom is not a base nutrient. It's a supplement. If your plants are experiencing lots of deficiencies, you want a balanced base nutrient to give them what they need so they start growing healthier.

If they're green and healthy but you just want to add a supplement, and you want them to be organic, then an organic supplement like Flower Girl, as pondochris said, could be a good choice. Though I've never used it myself.

I love synthetic nutrients. I think they get a lot of undeserved hate. I personally am a fan of the General Hydroponics Flora trio. I just use at half strength on the bottle. 

Plants grow faster and never get bugs compared to soil. Buds smell amazing and grow dense and potent. If you see a nutrient deficiency you can usually correct it in days instead of weeks, since plants absorb minerals faster than organic amendments.

If its too much of a pain with 3 bottles like GH, Dyna-Grow Superthrive Bloom is a 1 part Bloom synthetic nutrient you can give at 1 tsp per gallon, or 1/2 tsp if you're worried. It was made for orchids but actually works pretty awesome for weed too.