Days One and Two: Stillness Is Normal
Newly added young angelfish typically park themselves in the quietest vertical cover they can find, bodies angled slightly, watching. This stillness is assessment, not necessarily illness, and it is helped by dim light for the first hours, no tapping on the glass, and tankmates left to make their own introductions without your hands in the water rearranging decor. Healthy young fish peek out, adjust position, and show interest when movement happens outside the tank.
Resist judging appetite on the first evening. Many young angelfish refuse the first offered meal and then eat ravenously on day two or three once they have mapped the tank. A fish still hiding with clamped fins at the end of day three is a different matter and deserves closer attention.
First Meals Reveal the Pecking Order
Feeding is where the week's real story unfolds. Angelfish are cichlids, and even juveniles begin sorting rank quickly: the boldest youngster takes the centre feeding position, others angle in from the sides, and the lowest-ranking fish may hang back and snatch what drifts down. Spread food across the surface so a single dominant fish cannot guard it all, and feed small amounts more than once a day during this week.
Note who eats and who only watches. That distinction, tracked over several days, separates normal shyness from a fish being actively excluded, and it tells you whether a second feeding spot or extra tall planting is needed before the gap in condition becomes visible on the fish itself.
Water and Space Checks for This Specific Week
Young angelfish arrive from the shop stressed and often underfed, and they are sensitive to a tank that is still stabilising. Test the water during this first week rather than assuming the cycle is holding under the new load, keep conditions stable rather than chasing adjustments, and postpone major maintenance unless a test demands it. Sudden large changes unsettle new fish more than slightly imperfect but steady conditions.
Think vertically as you watch them settle. Angelfish use height, and tall plants or wood that break the tank into sightline-separated columns let a chased fish disappear instead of circling in open water. If one fish spends the whole week exiled behind the filter, the layout, not the fish, is usually what needs changing.
When the First Week Is Not Going Well
Contact an aquatic veterinarian or the supplying shop promptly if a young angelfish stops feeding entirely beyond the third day, breathes rapidly at the surface, shows fins rotting or white patches spreading, or is chased so relentlessly it cannot rest. Young cichlids also flash against decor or shake their heads when irritated by water conditions or parasites, and behaviour repeated across several fish points first to the water itself.
One fish hiding while others thrive usually means social pressure or an individual problem. The whole group hiding and refusing food almost always means an environmental one, and testing comes before any other intervention.
By the End of the Week
A good first week ends with angelfish cruising the middle water at feeding time, mild squabbles that resolve in seconds, and every fish visibly filling out. You will also know each individual's character, which makes later pairing behaviour and growth spurts easy to recognise.
Those day-by-day observations are worth pooling while memories are fresh, and KinsLe Care Teams lets each person who feeds the tank record which angelfish ate and who was chased, building one shared picture of the settling week.