Cohabit: Tank Tenants

Map who belongs together and plan peaceful tank communities before spending on livestock that will spar over space, climate, or temperament. Designed as a basin plan that catches friction while it costs nothing but curiosity, this app helps hobby aquarists and terrarium keepers solve scattered compatibility knowledge—temperament, water regimes, tank layers, and size—so they can spot clashes early. Core value comes from tank projects, a role-tagged tenant palette, layer-based stocking (bottom / mid / top / support), plain-language conflict review, community variants with compare and archive flows, plus layer-occupancy and role-coverage analytics with biotope and conflict tips. Compose dwellers into bottom, mid, and top layers, then watch incompatible pairs light up with plain-spoken reasons—predator meeting prey, territorial overlap, mismatched water regimes. Fork stocking variants, compare drafts side by side, and chase role gaps until the shoal feels balanced. Keepers reverse course without shame: conflict tips, biotope pairing cues, and occupancy diagrams turn guesswork into calm, deliberate stocking. Walk into the shop knowing your community already agrees.