Hi All, I am looking a make a saltwater aquarium/ reef thing. I have a 90l (around 20 gallons) aqua one cube tank that i got of Facebook marketplace a while back and have finally decide to use it for something. I have kept a few freshwater fish before and have a good idea on how to manage those tanks. Generally I have an idea on what i want for this tank and how to run it but i though before i stuff things up i should ask. Right now from watching many youtube videos i think i want 2 clowns, a fire goby, a banggai cardinalfish and cleaner things like crabs and stuff. Eventually i would like to add corals or maybe i should do that first i don't know so if you have and good ones for beginners let me know. Any recommendations on filtration the tank does have a stand/cupboard for it but right now but I was thinking the Fluval U3 internal filter just cause I don't know what else to get. Right now i have a heater, light and cleaning stuff because that all came with the tank or i had it from previous freshwater tanks. Also any recommendations for wave makers and protein skimmers as i don't have those yet. I don't have unlimited money so if you can think of any cheap or value for money ideas they would be appreciated
Thanks for any future help i get.
Thanks for any future help i get.