Four Spot Splash Tetra Care Guide – Pyrrhulina spilota

September 02, 2026

The Four Spot Splash Tetra (Pyrrhulina spilota) is one of those fish that makes you wonder why we keep seeing the same handful of tetras in every aquarium store.

Despite the common name, this isn't really your typical tetra. Pyrrhulina spilota belongs to the family Lebiasinidae, putting it alongside fish like pencilfish and splash tetras. It has the long, slightly torpedo-shaped body you expect from the group, an upturned mouth, and four dark markings running down the side that give the fish its common name.

They aren't especially flashy in the traditional sense. There are no neon stripes or electric-blue scales here. Instead, you get a fish with warm yellow, orange and reddish coloration, interesting markings, and — more importantly — a lot of personality and behavior.

For anyone who enjoys keeping fish that are a little outside the mainstream, this is a species worth knowing about.

Quick Care Guide

Scientific name: Pyrrhulina spilota
Common name: Four Spot Splash Tetra
Family: Lebiasinidae
Origin: Peru, upper Amazon River basin
Adult size: Around 2.5–3 inches
Temperature: 73–79°F
pH: 5.8–7.0
Diet: Omnivorous, with a preference for small meaty foods
Temperament: Generally peaceful, although males can become territorial
Swimming level: Primarily upper and middle portions of the aquarium
Difficulty: Intermediate
Minimum tank size: 20 gallons for a small group; larger is better

Natural Habitat

Pyrrhulina spilota comes from the upper Amazon River basin in Peru.

Like a lot of fish from this part of South America, they're associated with warm tropical freshwater, and their body shape gives you a pretty good clue about how they live. The mouth points upward and the fish spends a lot of its time toward the upper portions of the water column.

You don't need to recreate a museum-quality Peruvian biotope to keep them successfully, but I would build the aquarium around that behavior.

Floating plants, overhanging vegetation, pieces of wood and some shaded areas will make much more sense for these fish than a completely bare, brightly lit aquarium.

They also appreciate some open swimming space. You don't have to turn the entire tank into a jungle.

Aquarium Setup

I would consider a 20-gallon aquarium about the starting point for a small group, although I'd personally rather give them more room.

These are active fish, and once males begin interacting with each other, that extra space becomes useful.

A good setup could be surprisingly simple:

Plenty of open swimming room
Plants around the sides and back
Some floating plant cover
Moderate to subdued lighting
Gentle to moderate water movement
Driftwood or branches if you want a more natural look
A secure lid

That last one is important.

Any fish designed to spend its life around the surface is a fish I don't particularly trust around an open aquarium. Keep the tank covered and don't leave large gaps around filters, cords or airline tubing.

You can certainly go all-in with botanicals, leaf litter and tannin-stained water, and they'd look fantastic in that type of setup. I just wouldn't consider it mandatory.

Water Parameters

A good target range for Four Spot Splash Tetras is:

Temperature: 73–79°F
pH: 5.8–7.0

They naturally come from softer Amazonian waters, but I wouldn't get obsessed with chasing a perfect pH number.

Stable, clean water is more important than constantly adding chemicals to move your pH from 7.2 to 6.8.

If you're working with extremely hard, alkaline tap water, that's a different conversation. But for most aquarists with reasonably moderate water, good maintenance and consistency should be the priority.

As always, ammonia and nitrite should remain at zero, and regular water changes are going to do more for these fish than constantly tinkering with water chemistry.

Feeding

Feeding Pyrrhulina spilota is pretty straightforward.

They will accept prepared aquarium foods, so this isn't one of those obscure imports that requires you to maintain three different live food cultures just to keep it alive.

A quality flake or appropriately sized pellet can make up the everyday diet, but I would definitely mix in frozen or live foods.

Bloodworms, brine shrimp, daphnia, mosquito larvae and similar foods are all good options.

Their upturned mouth is another clue here. These fish are built to take food from the surface and upper water column, so foods that float or slowly sink are going to get their attention much more readily than something that immediately drops to the substrate.

A varied diet will also become especially useful if you're trying to get adults into breeding condition.

Behavior and Tank Mates

This is where Pyrrhulina spilota starts getting more interesting.

Most of the time they're peaceful fish that can work well in a community aquarium. They spend much of their time cruising around the upper portions of the tank and generally aren't interested in bothering unrelated species.

But I wouldn't describe them as a tight-schooling tetra in the same way we might describe Rummy Nose Tetras.

They're social fish, but there is some interaction and hierarchy within the group, particularly between males. When breeding behavior kicks in, males can establish territories and become considerably more interested in what the other males are doing.

That's why I'd keep a group rather than a pair.

Six or more would be a good starting point if the aquarium has enough room, and giving them plants and structure helps break up sight lines if males decide they don't particularly like each other that day.

For tank mates, I'd stick with relatively peaceful species.

Small and medium-sized tetras, pencilfish, Corydoras, peaceful dwarf cichlids and similar community fish should all make sense.

One particularly interesting combination would be Apistogramma. The splash tetras spend much of their time higher in the aquarium while the apistos establish themselves closer to the bottom, allowing both fish to occupy different parts of the tank.

I'd avoid large aggressive fish and extremely frantic feeders that turn every meal into a demolition derby.

Breeding Four Spot Splash Tetras

This is probably the coolest thing about keeping Pyrrhulina spilota.

Unlike the typical tetra that scatters eggs and immediately considers them a snack, Four Spot Splash Tetras show parental care.

When the fish enter breeding condition, males become territorial and females deposit adhesive eggs onto submerged surfaces, including aquatic vegetation. The male fertilizes the eggs and then guards the spawning site.

That's already pretty unusual for a fish we casually call a tetra.

A male may spawn with multiple females and defend the resulting eggs and young.

If breeding is your goal, I'd give them plenty of plants with suitable leaves and keep the water clean, warm and on the softer side. Conditioning the adults with frozen and live foods should also help.

Once fry appear, you'll need appropriately tiny foods at first. Infusoria or another very small fry food is useful during the earliest stage, followed by newly hatched baby brine shrimp once they're large enough to take it.

And this is worth clearing up because of the common name: don't assume these fish reproduce exactly like the famous Splash Tetra, Copella arnoldi.

Copella arnoldi is known for jumping out of the water to deposit eggs above the waterline and then splashing them to keep them wet. Four Spot Splash Tetras are relatives, but P. spilota has been reported spawning on submerged vegetation with the male guarding the brood.

It's a good example of why common names can sometimes create more confusion than they solve.

Male vs. Female

Sexing mature fish becomes easier once you have a group to compare.

Males tend to develop stronger coloration and become more obvious when displaying or defending a spawning territory. Females are generally fuller-bodied, particularly when carrying eggs.

Rather than trying to pick out one male and one female at the store, I'd buy a group and let the fish sort themselves out.

That usually gives you better odds of ending up with both sexes anyway, and you get to see much more of their natural social behavior.

Are Four Spot Splash Tetras Difficult to Keep?

I wouldn't call them difficult.

I also wouldn't necessarily recommend them as someone's very first aquarium fish.

Their basic care isn't particularly demanding. They'll eat prepared foods, they don't need an enormous aquarium, and they're generally peaceful.

The difference is that you're dealing with a relatively uncommon species. You're probably not going to find twenty years' worth of aquarium forum posts every time you have a question about them.

For me, that's part of the appeal.

If you've already kept the usual tetras and you're looking for something different without jumping into an extremely specialized species, Pyrrhulina spilota hits a pretty nice middle ground.

Final Thoughts

The Four Spot Splash Tetra is exactly the type of fish I wish we saw more often in the hobby.

It's not going to glow from across the room like a Cardinal Tetra. What makes it interesting is everything else: the surface-oriented behavior, interactions between males, unusual reproductive strategy and the fact that you're keeping a species that most aquarium hobbyists have probably never seen.

Give them a planted aquarium, some room to establish themselves, a varied diet and a group of their own kind, and you get much more than another small schooling fish.

And if they decide to breed, that's when Pyrrhulina spilota really starts showing you why it's worth keeping.

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