Stocking a nano reef, too much?

[jufowler]

Im beginning the cycling process on my first reef tank soon and im starting to look for what fish to add in the coming months after its cycled. Im starting a 20 gallon long nano reef with a ten gallon sump. The sump will have a protien skimmer, refugium, and a 30 gallon hang on back filter. My plans so far for livestock are a Tanakas Pygmy Wrasse, a Black Ocellaris clown fish, a Royal Gamma Basslet, an Orange Stripe Prawn Goby, A Tuxedo or Pin Cussion urchin, and maybe some type of shrimp. Im also unsure if I need a clean up crew or not? Thanks for the help

 

[nooboftanks]

Im beginning the cycling process on my first reef tank soon and im starting to look for what fish to add in the coming months after its cycled. Im starting a 20 gallon long nano reef with a ten gallon sump. The sump will have a protien skimmer, refugium, and a 30 gallon hang on back filter. My plans so far for livestock are a Tanakas Pygmy Wrasse, a Black Ocellaris clown fish, a Royal Gamma Basslet, an Orange Stripe Prawn Goby, A Tuxedo or Pin Cussion urchin, and maybe some type of shrimp. Im also unsure if I need a clean up crew or not? Thanks for the help

Clean up crew really depends on your substrate for example if you have live sand I would highly recommend a cleanup crew because the sand is very fine and needs to be turned over