To be honest 60 gal Fish Tank big enough to really enjoy salt or fresh, if interested let me know and I have a nephew that can hook you up and get you started he helps over at Strictly Fish Lakewood.
I'm a dog person but I live in a house with a big yard.
I like dogs because they are always happy to see you and never talk back
Cats can do the same but if our in a apartment thats warm you may not like the smell after a while.
By the way I do have 1 Dog, 6 birds, 1 Snake and a 200 gal. fish tank right now so I do have experience with these, I've had 3 dogs at one time once.