| Mai-Ndombe dwarf cichlid Nanochromis transvestitus |  |
| Marbled hatchetfish Carnegiella strigata strigata |  |
| Metallic livebearer Girardinus metallicus |  |
| Midget suckermouth catfish, Dwarf sucker catfish, Oto Otocinclus affinis |  |
| Millions fish, Guppy Poecilia reticulata | .jpg) |
| Molly, Liberty Molly, Black Molly, Short-Finned Molly Poecilia sphenops |  |
| Moon redhook, Red finned silver dollar Myleus rubripinnis |  |
| Moonlight gourami Trichogaster microlepis |  |
| Mosaic corydoras Corydoras haraldschultzi |  |
| Mosquito fish, Dwarf livebearer Heterandria formosa | |
| Megalomphodus megalopterus Black Phantom Tetra |  |
| Melanochromis johanni Johanni Mbuna |  |
| Melanotaenia boesemani Boesemans rainbow fish |  |
| Melanotaenia fluviatilis | |
| Melanotaenia papuae Papuan Rainbowfish |  |
| Melanotaenia praecox Dwarf neon rainbowfish |  |
| Melanotaenia trifasciata Jewel rainbowfish |  |
| Mesonauta festiva Festive cichlid |  |
| Metriaclima estherae Red zebra |  |
| Myleus rubripinnis Red finned silver dollar, Moon redhook | |
What fish are good community fish? There is no absolute answer to this, but in general a community tank should contain only species that will tolerate each others behaviour, are approximately the same size, eat the same foods, and accept the same water conditions. Hardy tank bred fish that have adapted somewhat to local water conditions, and have no special dietary requirements usually make good candidates