Hey Guys...
I always forget that part!
58 RR w/ a wd and a protein skimmer
The LR came from an established tank (about a year -- I transported it in saltwater and it has been in the tank since 1/12).
There is a small cleaning crew: 4-6 crabs; 5-7 small snails
Any more thoughts? said:
You probably already checked this, but just thought I'd ask.
You mentioned that your water parameters are stable. Do you have any nitrites or ammonia at all at this point?
What are your nitrates at currently?
Personally, I wouldn't add any more in way of a clean up crew, until you know that crew you have is not sufficient for the amount of work you need done. You will most probably need more, but add them slowly. Many add too many before the tank has enough for them to consume, and as a result they starve.
A general rule of thumb to follow is: add a couple, as you see you need more. I know this can be hard when ordering online, but it will require less work on your part in the long run (adding extra food, etc.).
Crabs can be excellent scavengers, but figure out what you want before your get them. Some species of crabs can be on the aggressive side, and may kill your snails, and other crabs before long.
Also, it is usually a good idea to get some extra shells for your crabs before adding the nassarius snails, or you may notice a steady decline in the number of snails you have in the tank over time.
As for your original question, just add 1 at a time. This will give your system time to catch up to the new load. If you “need” to add 2 at a time (pair or clowns, or certain aggressive fish), give yourself more time before adding the next fish down the road.
Best of luck....