Will 4 quarts of nutrients be enough for two plants?

2 plants in 3 gallon coco-coir hempy buckets under 400w MH, then HPS, no cloning, started from seed. Just a rough estimate. It would be inconvenient if I ran out during the grow. I'm still undecided on what to use. I'm leaning toward Lucas formula along with cal/mag, so either General Hydroponics Micro + Bloom (maybe Grow too), or just Flora Nova. If I just use FloraNova, I would only need one 4 quart bottle.

i use flora nova grow and the bloom with great results. i do top dress with worm n bat shit once during flower, also...find out what works for you...peace

I believe flora nova uses 1 teaspoon per gallon so 4quarts will last ya a while. Just make sure you get good runoff using coco and you'll b a ok

running out is a tragedy... running out of anything can mess your whole schedule up... always buy a little more than what you think you will need