Yeah you could give us some specs? I just added a neon goby about 3 weeks ago..I didnt even want to but my mom really wanted it and she was buying all fo the other stuff so I let her have it...But now its one of my favorite fish...lol It really takes up so swimming space in my tank, yet it is always out and visible...And he runs around cleaning every sigle fish in my tank! Tons of personailty, But I have heard nothing but good things about Blennies too! Looks like a win/win situation to me...