Super elusive Goby?

Hey guys. I haven't been on in a while but things have been crazy. It's exam time and we're remodeling like 3/4 of the house which looks amazing btw but I can barely move my fingers from laying carpet.

Anyways, over the past 2-3 weeks I have upgraded my tank to a 40g and bought some more soft corals plus a yellow rose goby and a yellow dottyback....not at the same time.

I acclimated the yellow rose goby and when he first got in the tank he went straight to the bottom and sat there. I went to do something and when I returned I didn't see him anywhere. Havent seen him since and that was like 3 weeks ago. I got the dottyback yesterday and he was so social. Went to bed and same thing, havent seen him since. I have a lot of live rock and my aquascape is pretty great with many places to hide. I know this is common behavior for gobies but I'm a tad concerned since Im seemingly trending to buy fish then never see them.

Any suggestions on how to know for sure they are ok in there? I have safety covers on the circulator, protein skimmer and filter, but checked anyway-nobody got sucked up. Nobody jumped out and no ammonia spikes. No way am I going in to move things around looking for fish!

Oh and here's the new setup

 

Looks like you can move some rock and look. but 3 weeks is a LONG time to not see a fish, IMO. good luck

 

Yah, seems a long time. Got a cat in the house with a guilty look on its face?

 

lol...I do have a cat but she doesn't have any claws and is a lil too prissy to go face fishing. I just posted another thread about having to move the tank. Depending on the feedback I get there, I may have to go searching for little yellow fishies.

 

Is the tank covered? Gobies are known to be jumpers...

I didn't see my sleeper goby for the first week, but he was out all of the time after that. 3 weeks is definitely a long time.

 

Grrr, no comment on the declawed cat.

 

lol, not really, yeah grrrrr

 

mmm...nope. No lid. But I've checked all around the floor many many times and no corpses yet.

 

I know, I know. I inherited the cat along with the house when mom moved out. She's a Himmy and mom had her spayed and declawed before she was 5 mos old. Definitely cruel. I'd never....
Furniture is replaceable but essential body parts are not