Do the water change and tidy up the tank to get it ready for the first few new or additional pieces of livestock.
It’s a good time to make any aquascaping changes you desire during this step of the set up.
When you’re done and the system is restarted, let the tank run for a day or two to allow it to settle out.
During this run time check and make adjustments to parameters of the aquarium water that may be needed, such as the temperature and salinity.
The biggest and most often made mistakes at this stage of a newly cycled aquarium is that one tries to cram too much into the tank too quickly or all at once.
It is important for you to be patient and go slowly on this set up to prevent causing problems from overloading the saltwater aquarium.
Whether it is fish, corals, or invertebrates, you should only choose and add 1 or 2 into the aquarium at a time.After your selection has been placed into the tank, you need to allow the aquarium’s nitrifying bacteria base to adjust to the additional bio-load.
This means you DO NOT add anything else at this point of the set up.
And over a week’s time you should test the aquarium water daily for any appearance of ammonia and possibly nitrite.
Zero readings will show you when it is safe to add the next 1 or 2 pieces of livestock. Better yet, even when the test results are showing zero, wait another week or two before continuing on.