yes probably.....Usually seahorses are kept in a species specific tank as they have different requirements than most reef tanks....lower water flow, target feeding etc.
cool i would love a firefish they look so cool.
?? i didnt know you had to target feed seahorses; i just pour in some frozen brine shrimp and it swims all around the tank eaten em all up.
I'm definately going to wait and see what it is but it might not even survive the cycling. And if it does, it might grow into a fish that is too big for a ten gallon.
Yea just rest and read up more on seahorses if you do plan on keeping it long term. If not get rid of it now and go get a firefish once your done cycling.