Fish suggestions

I'm wanting to have something that will clean the sand or rocks a little. It doesn't have to do a lot of cleaning b/c I will have a CUC. I like some of the Gobys and have seen some Blennies that I like. I'm just not sure what to get. I really like the Watchman Goby and saw a few others at one of the LFS's yesterday. I don't remember what the were. So, if anyone could give me some suggestions of fish to look at, that would be great. Whatever I decide on will not be added for a month or 2, at least. I just would like to have my plan of attack, purchasewise. I will have at least 2 O Clowns when said fish is added. Not sure what else may be in there. I have a 75g DT and 20g long sump. Suggestions should be reef safe as I will add some corals eventually.

 

Sand sifting gobies and lawnmower blennies would be good for moving/cleaning the sand.

 

My pink and blue spotted goby sifts sand and he eats what algae I had

 

Gobies are jumpers. Make sure a secure lid is on. Yes, even if a small hole is in it, they will get out of it.

 

Any fish can be a jumper, not having a lid is irresponsible.