Why peacock cichlids leave the water
Peacock cichlids are active, surface-aware Malawi cichlids, and most escapes happen in a burst rather than by wandering: a male in breeding colour chases a rival or a female across the tank, the pursued fish flees upward, and an uncovered corner does the rest. Feeding produces a second risky moment, when several fish surge at food together, and a sudden shadow, a light switching on, or a net during maintenance can trigger the same vertical dash. A lid solves the exit; understanding the chase solves the repeated attempts.
Seal the top, including the awkward corners
Fit a lid that covers the whole surface and sits without rocking, then close the gaps left for filter pipework, heaters and cables with mesh or cut acrylic pieces. Peacocks do not need a large opening — a fleeing fish aims for light and space, and the corner cut-outs are exactly where both appear. Dropping the water level a little below the rim adds clearance between the surface and the lid, so a fish that jumps meets the cover lower and falls back rather than wedging at the edge.
Check the lid after every maintenance session, not just at set-up. Cichlid tanks get opened often for rockwork moves and filter work, and a cover left slightly ajar after re-scaping is a common thread in escapes that seem to come from nowhere.
Calm the chases that end in a leap
If one male is repeatedly driving tankmates to the surface, the lid is only half the answer. Rockwork arranged to break sight lines gives a chased fish somewhere to disappear sideways instead of upward, and reviewing how many males and females share the tank — and whether the mix is working — matters more than adding another ornament. Persistent, targeted aggression that leaves a fish hiding at the surface is a stocking problem to fix by rearranging territory or rehoming the aggressor, not something the victim can be trained out of.
Feed in a way that spreads the rush: scatter food across a wider area rather than dropping it in one point, so the group does not pile into a single vertical scramble. Keep movements around the tank steady at feeding time, and let the lights come on before you approach so the first thing the fish meet is not a looming shape over dark water.
Water, routine and the shared lid habit
Test the water if jumping is new or increasing in an established group, and keep changes consistent; cichlids made restless by shifting conditions are quicker to bolt. During water changes, rest a cover over the open section you are not working in, because a startled peacock can clear a lowered water line while your attention is on the siphon.
A fish found out of the tank should go straight back in with wet hands, lights kept low, and an eye kept on it for torn fins or laboured breathing; damage that worsens or a fish that cannot hold position warrants prompt advice from an aquatic veterinarian or a trusted local fish service. Because several people often feed a display tank, KinsLe Family Sharing keeps the reseat-the-lid note on the peacocks' shared profile, so the last person at the tank works from the same details as everyone else.