I've been here several times and this place is great!  They describe themselves as a 5 star drive bar and the food and atmosphere lives up to that description. The restaurant is located right on the water in Grant and while it doesn't look like much it offers fresh from Florida seafood. The shrimp we had were fresh and plump and were cooked perfectly. The fried clams were HUGE and not chewy like in some places.  The burger is a hand formed patty and was chargrilled to perfection. If they have it on the specials menu order the smoked fish dip, You wont regret it. They also post a specials board on their Facebook page every day at 2pm that lists their fresh catch and other daily  specials.  The only negative (and the reason for the 4 star rating) is that everything is served on plastic plates and such.  This is definitely a great place for good Florida seafood.
Review Source:Ate at the Fish House last night and the food was fantastic. I had homemade crabcakes ($20) Hubby had Fisherman's Sampler with fresh snapper, oysters & what looked to be homemade clam strips. ($20) Sis had coconut shrimp basket ($12) of about 6 huge butterfly shrimp and a unique dipping sauce that had horseradish in it. Ended with homemade keylime pie, that was really good.
Pros - great food - great live music - great waiter
Cons - I think it's somewhat overpriced for plastic plates, cups and flatware that won't even cut the keylime pie
Overall, we had a wonderful time, on the deck with live music, even with the rain. The food was really first rate.