Fish types

We just started a salt water tank and don't know what type of fish this is. And this slime looking thing growing on the rocks. Please help.

 

I'm not sure on the fish, but the thing on the rock is either a sponge or a tunicate.

 

I'm not positive, but I think the fish looks like it may be a orange chromis. If so, they are brackish but can live in full salt I believe.

 

I like your dog coylee.


I have no idea what that fish is, but let's get some more details about your tank and some full tank pictures.

 

I think the fish is a yellow pseudochromis. I don't know what the thing on the rock is though.

 

Pics

Here are hopefully some better and helpful pictures of our tank and fish mostly unknown.. we ended up with this tank about a month ago.. friend was done with it and was goin to flush fish and put tank in storage. so for 100 dollars i got it all.. we have had a few 55 gal freshwater but this is the first saltwater.. the package as far as i know 90 gal mabey 40 pounds of live rock protien skimmer, rufugiem, couple powerheads, heater,pump,[size?] we are having a problem with high nitrates just cleaned all the rock i think it may have helped a little.. and two 20 percent water changes any sugg. on a good hardy cleaner or group of cleaners to help would be aperciated thanks in advance