First off, I am new to the forum, so I want to say hi to everyone. I have been in the FW fish hobby for about seven years, and I am wanting to set up my first brackish water tank. I have picked out fish I want to include, but I'm not sure on the number of each fish to get and wanted to check compatability. The aquarium is 75 gallons. I want to include 4 monos (which I already have- 2 mono sebae and 2 mono argenteus), ruby scats, silver needle nose gar(probably 1), archer, four eyed fish, and one dragon fish. I guess I'm wanting to know if my aquarium is big enough for these fish and how many I should get of each. Any information would be very helpful. Thanks!