Hey everyone, I"m on day 12 of my 76 day fallow period and this morning I noticed my sand starfish weren't moving much even when I picked them up. I turned one upside down and he uprighted himself but I'm wondering if they are starving due to the removal of the fish. I do add nutrients to the tank in ways such as feeding my sun corals fairy shrimp. Can I have a few opinions on this? Can they starve this quickly? Can they absorb nutrients in the water? I was thinking about adding two small starfish of a different species so I need some help figuring out if anything is wrong.