surface swimming

I got these guys on the 22nd they Appeared to have appetites but slowly over the week, they just seem to be eating and spitting out food. The healthier one has taken on to eating brine here and there. The more emaciated (swimming vertical) one hasn’t had interest in any food in two days. I just...

My watchman goby has been in this tank for a month & he has yet to settle in. He is constantly at the top of the tank, he never goes down to the sand bed. Is this normal? I have 2 pistol shrimp which I was hoping he would pair with but since he never goes to the sand bed, I dont think hes even...