Hey all, this is my first post here. Sorry ahead of time if it's a lot at once I'm thinking of setting up a 75 gallon with an assortment of peacock cichlids and wanted some help setting it up! It'd be a standard 75 gallon tank, and for filtration I'm going to build a sump and refugium so I can customize the filtration process; sump is going to be a 20 gallon tank for a total of like 85 or so gallons of water with about 600-700 gph flow. First of all, if the fish will get to be about 4-5" max size, how many of them should I stock? What kind of decor? Any plants, live or plastic? I know rocks and caves, but wood? (Yeah, I know about high pH for the fish and tannins from the wood, but I'm not that worried about it) And tankmates? I'm thinking mainly a bottom-feeder or a few, like a loach or catfish. I'd get them more for the fish themselves than the sake of a scavenger/bottom-feeder, anyway. What about rainbow sharks? Like two or three of them since it's a bigger tank? Or synodontis catfish? Or pictus cats (and how many?) A pleco? It's going to have a sandy substrate and so I was thinking something that likes sand and might burrow through it, and loaches look pretty neat, but I've never had one before and know little about them. Whatever it is, I'd like to see it some of the time, but it doesn't have to be often, so a mostly nocturnal or a shy fish wouldn't matter. I want fish that are going to get along and hopefully not eat each other, but also know that it's going to be at least a semi-aggressive tank.