yeah....thanks..I really do want to keep the 75G as the seahorse tank. I just want to make sure I'm making the right decision for the seahorses, and not my preference. I don't have to live in it after all. I do have 1 more option. If the 75G just seems too big, I can always add a tank divider and section off a portion of the tank. If the divider has holes drilled in it, it shouldn't cause any problems with water circulation. The pods could reproduce in the sectioned off area without the seahorses depleating them. That's a big bonus I didn't think of earlier.
Are you going to run a sump? If so, just include a fuge and you have a pod breeding zone. Another thing you can do is make pod piles. Fill a green strawberry basket full of LR rubble. Plop in your tank. Excellent little pod hide aways. They can be transplanted between tanks once in awhile to replenush depleted pod populations.