FW Koi Tank that is already setup. Once reached 1.024 salinity I have found is time that I will add around 100lb of Live Rock. After a week or so and levels have been checked multiple times for low ammonia/nitra(i)te levels, I want to add 5x starfish, a DogFaced puffer, a porcupine puffer, GSP, snowflake Eel and this is where it gets confusing. If any of these puffers go into the ocean I'm sure they would know not to go into a sea anemone. Now I want to make a small cove in my tank for some clownfish and sea anenomie to give it more character, but am deathly afraid of hurting my puffers. My questions are...
Will 210 Gallons be enough for this kind of marine tank?
6 weeks I have heard is a good time with some starter fish while cycling, any suggestions to improve upon?
Is 15% water changes going to be enough?
Will Live rock die once moved if the tank isn't setup properly, and how do i prevent this?
Please any suggestions upon the fish I'm putting together or possibilities of fish that I could add instead would be GREATLY appreciated. Thank you ahead of time for putting in the effort to read my post, and thank you personally to everyone that replies with a helpful answer.