Leptura cichlid

Where they come from

Xenotilapia leptura (often called the Leptura cichlid) comes from Lake Tanganyika in Africa. They're one of those sleek sand-dwelling Tanganyikans that spend a lot of their day hovering and picking at the bottom. If you like fish that look calm but are always "doing something," these are a fun watch.

Setting up their tank

Think sand first, rocks second. These fish are built for life over open bottom, and they act way more natural when they can sift. A bare-bottom tank usually makes them nervous and twitchy, and you'll miss a lot of their normal behavior.

• Tank size: I would not keep a group in anything under a 4 foot tank. They use the horizontal space constantly.
• Substrate: fine sand (not sharp gravel). Pool filter sand works great.
• Hardscape: a few rock piles or low rock lines to break up sight lines, but leave big open sandy areas.
• Filtration: strong and steady. Tanganyikans like clean water, and these guys are always stirring the sand.
• Flow: moderate. You want circulation, but not a sandstorm. Aim powerheads so they do not blast the bottom.

Water-wise, treat them like classic Tanganyika fish: hard, alkaline, stable. The exact number matters less than keeping it consistent and keeping nitrate down with regular water changes.

What to feed them

They are micropredators and sand pickers, so you will get the best results feeding small foods they can grab easily. They are not built for big pellets, and they are not the kind of Tanganyikan that should be stuffed with heavy, fatty foods.

• Staples: quality small pellets or granules made for Tanganyika/African cichlids (small size matters).
• Frozen: cyclops, baby brine shrimp, mysis (chopped if large), daphnia.
• Occasional: live baby brine shrimp if you want to see them really switch on.

If you are converting wild or picky individuals onto dry food, mix in frozen and feed with the pumps off for a few minutes. They learn faster when food is not being blown around.

How they behave and who they get along with

Leptura are not "centerpiece bruisers." They are more on the shy, flighty side compared to a lot of Tanganyikans, and they do best in groups. A lone fish tends to hide and spook. In a group, they settle down and spend more time out in the open.

• Group size: aim for 6+ if you can. More fish spreads out any chasing.
• Temperament: mild to moderate. They will posture and squabble, but they are not usually relentless.
• Best tankmates: other calmer Tanganyika fish that will not dominate the water column or rush food.
• Avoid: aggressive rock-dwellers, fast boisterous feeders, and anything that will constantly push them off the sand.

They also appreciate a tank layout with "lanes" of open sand separated by rocks. That way a dominant male can do his thing without the whole group staring him down all day.

Breeding tips

They are mouthbrooders, and once a pair forms you will notice more hovering, shivering displays, and the female holding. In a calm tank, they will sometimes breed without you doing anything special besides keeping the water clean and feeding well.

• Conditioning: small frequent feedings with cyclops/brine/mysis and stable warm-ish temps.
• Spawning area: open sand is usually where the action happens.
• Holding: the female may hide more and eat little to nothing while holding. That is normal.
• Fry: once released, tiny foods like baby brine shrimp and crushed flakes/powdered fry food work.

If you plan to raise numbers, a separate grow-out tank helps a lot. In a community Tanganyika tank, some fry can make it, but do not expect big survival rates unless the setup is stacked in their favor.

Common problems to watch for

• Spooking and glass surfing: usually from bright lights, not enough cover, or aggressive tankmates. Dim the tank a bit, add rock breaks, and rethink the stocking.
• Not eating: common right after import or after a social shakeup. Offer small frozen foods, reduce competition, and give them time.
• Bloat and wasting: often tied to overfeeding, dirty water, or stress. Cut feeding, keep water changes steady, and check that nobody is being bullied.
• Mouth and gill irritation: often from coarse substrate or sand constantly blasted by powerheads.
• Jumping: they can launch if startled. A tight lid saves lives.

If you keep the sand fine, the group size decent, and the tankmates reasonable, Xenotilapia leptura is a really rewarding intermediate Tanganyikan. Most "mystery deaths" with them trace back to stress plus water quality plus overeating, so keep those three boring basics nailed down.