How would set up a saltwater ecosystem tank

[DEE’S reef]

I’ve seen those videos of people making really cool costume tanks with macro algae and all types of coral and I was wondering I would do that in saltwater

 

[Randy Holmes-Farley Verified Community Expert]

If you mean a totally closed system that you do not feed or remove anything from, I think such a tank would have very minimal organisms.

 

[DEE’S reef]

I was thinking a tank with a couple fish and a lot foods like pods and other food source with corals and macro algae to make it lush I don’t if it’s considered a ecosystem but I’ve seen some videos of tanks like that