Ok, thank you!
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I plan to get the Goby tomorrow, assuming my LFS has some in stock.
You just got live rock a few days ago. If your tank is cycled (and that’s a big if), it’s still not ready for a watchman goby. Personally, I would add the clowns first (assuming your tank is cycled and is converting 2ppm Ammonia within 24 hours). Gobies, especially more sensitive ones like yellow watchman (I would rate them as intermediate in terms of care level), need a mature or at least well established tank. Based on your stock list, this is the order I would add them:
1. Clowns
2. Royal Gramma
3. Yellow Watchman
4. Shrimp
The snails and any other cleanup crew, I would add as soon as you start to see some algae growth, or after you’ve had fish for a week or so. In terms of how long to wait between each fish, I would give at least two weeks.
Also, this is all advice assuming that you aren’t QTing. I think I recall from your other thread that you weren’t planning on QTing - nothing wrong with that so long as you get healthy stock (would be best to observe the fish at the lfs over a few days, put a deposit down and they should hold it for you), and do disease management (part of which is making sure your tank is well cycled, water chemistry is good, feeding a well rounded diet, and by going slow so as not to overwhelm your biological filtration).
I do think you’re probably jumping the gun on adding any fish, but if you’re sure your tank is cycled, go with the clowns first, they’re much, much hardier than a yellow watchman.