Fish and Seaweed Blend Fertilizer

[Katsols]

Hello, I've always read and used specially formulated orchid fertilizer, like for ex: i use grow more urea free orchid food 20-10-20. I used it last year and since it's getting warmer i started using it again. Now that spring is coming and with the warmth i'm hoping to see a growth spur with my baby vanda pakchong blue and little vandofinetia i thought maybe giving it a little boost this summer and use "Neptune's Harvest Organic Fish and Seaweed Blend Fertilizer, 2-3-1" as well, and i guess i could use half of the recommended ammount, no?
What do you guys think, would this be good?