Hi I'm relatively new to fish keeping. I have a 40l tank with 6 danios in. Just recently got a 180l tank which I intend to plant up this week and let cycle. I thought I wanted a betta, guppies, some tetras and a bristlednose plec. However after more research I think I should re think the betta. The danios I'd move to the bigger tank also once it's cycled. My question is which tetras will he best suited? I initially wanted neons but worry they're too small. I also read on a different thread that pearl gouramis might be a good fit but I'm worried about over stocking AND worrying that I won't have enough fish in shoals for them to be happy
As you have danios already you'll need to build around them, so first increase their shoal to 10-12. You could have neons with them as they will cope with the cooler temperature danios prefer, or as a slightly larger alternative have a look at harlequin rasboras. In a decent shoal, they're a very attractive species (IMO). Pearl gouramis would also be OK in with danios and harlequins, either a pair or trio (1 male, 2 female). A bristlenose pleco will also be fine, or a group of peppered cories might take your fancy as bottom dwellers.