Two AI primes or One Hydra 26

[ItouchedThebutt]

Hey guys is there a huge difference in power between 1 hydra and 2 primes? have been looking at some used ones and found a hydra for 260 shipped. no mount. and have a guy locally selling 2 primes for 280. both are models are HD. Looking for a JBJ 30 RL

Currently for my set up witch is a 2x2x2 cube I'm using a T5 Led hybrid light for my tank. Its 4T5 bulbs with 1 Ai prime and honestly I was still wanting 1 more AI to have 2 over it to help even more with shadowing. That or a kessil A360. That's over a mixed reef. No par numbers though.