科: Cichlidae
火口为慈鲷科鱼类，繁殖期攻击性上升，需提前规划领域，原生分布于中北美洲。领域就是它的世界观；石头砌成的墙比开阔水面更能带来平静。成体约 12.8–18.7 cm，成对或一雄多雌，缸内需有遮蔽视线的隔断，适宜水温 26–30 °C。过滤要强，石头要堆。
From the waters of Central America comes Thorichthys meeki, a member of the family Cichlidae. Territory is its whole worldview; rocks arranged as walls calm what open water cannot. It lives on the bottom. Adults reach 12.8–18.7 cm. Pairs or harems in tanks with broken sightlines. Strong filtration, hardscape boundaries and a steady routine turn a brawler into a showpiece. Maintain 26–30 °C at pH 6.5–7.5. Undemanding once its core needs are met.