Setting up my 1st seahorse tank

Ok, i’m going to get a seahorse only tank. I just purchased a 35 gallon hex, 24\” tall. I want to get some mustang seahorses, and maybe some sunburst seahorses, as i have researched and found these are the hardiest. My questions are about the tank setup… 1. What kind of filter would be ideal? I know they need very low water flow, and the only filter i\’m familiar with is a wet/dry. I know this creates a lot of flow. Would a canister filter be ok? Could i just get a hang-on bio-wheel filter, or is this not enough filtration? 2. Can i have any powerheads in the tank? I plan on getting about 20 nassarius snails, and possibly a few other sifters, so the sand shouldn’t be a problem. Should i put just a small powerhead? 3. I know seahorses need no special lighting, so would the hood that comes with the tank be ok with it? I believe they had a 3×15 florescent hood with the tank. 4. I also wanted to maybe put corals in it. Are there any corals that will be ok in a little water flow environment? Maybe gorgonias or a sponge? I think that\’s it for now. Any suggestions would be great, especially if you have a seahorse tank! Jenn