stocking for a 160 gallon reef

Hey everyone, very new to this whole forum thing, finally sighned up, im 15 years old and have a massive passion for animals! ESPECIALLY fish, i research 24/7 and have always loved reefs but for the first few years i never went as far as researching because i was under the inpression it was to expensive. anyway ill stop rambling, ATM i have a 3ft 160l freshwater tank with cats and tetras etc, im thinking of saving my money to convert this to a reef! anyway away from that, i eventually want to get a 160 gallon cube, 100x100x60cm

ï know what i want in it, just wanted to know if it is to much?!

Heres what i want

5xCleaner shrimp

2xPeppermint shrimp

5xSexy shrimp

1xWhite spot anemone shrimp

1xPom pom crab

2xPorcelain crab

30xAstrea snails

6xNassarius snails

4xBlenny(Bicolor,Midas,Algae,Tail spotted)

6xGoby(Hifin red banded,Hectors,Yasha,Pinkbar,Yellow watchman,Half barred reef.)

2xFemale mandarin dragonet

5xBluegreen chromis, & 3xBangaii cardinal

3xFirefish goby

2xScissortail dartfish

1xCleaner wrasse & A Six line wrasse

4xDwarf angels & 3xTangs plus a Moorish idol

and lastly 4 clown pairs



please tell me if anything ive listed isnt compatible with a mixed reef and the other fish i've listed, dont be to harsh either please, im only just started researching reefs.