Can Apple Snail and Betta Macrostoma Live Together?

Apple Snail is a peaceful species (0/10), while Betta Macrostoma is moderately assertive (6/10). This notable difference means Betta Macrostoma may occasionally assert dominance over Apple Snail.

Large aggression gap (6 points) between Apple Snail and Betta Macrostoma increases stress risk for the more peaceful fish.

Apple Snail and Betta Macrostoma both frequent the Bottom (Substrate), Middle (Open Water), and Top (Surface) region of the setup. This overlap can increase competition for space, so providing ample room and cover is important to keep both species comfortable.

Additional behavioural considerations to keep in mind: Hyperactive swimmers can stress shy, slow-moving species through constant motion. Aggressive eaters may outcompete shy fish for food, leading to malnutrition.

Worth noting: Betta Macrostoma is a known jumper, so a tight-fitting lid is essential.

The safe temperature window for both species falls between 20°C and 25°C. Aim for the midpoint of this range (around 22.5°C) for optimal comfort.

The pH requirements of Apple Snail (7.2–8.5) and Betta Macrostoma (4–6) do not overlap, making it impossible to satisfy both species simultaneously.

Hardness requirements are incompatible: Apple Snail needs 8–25 dGH while Betta Macrostoma requires 0–5 dGH.

To house Apple Snail and Betta Macrostoma together, plan for an aquarium of at least 150 litres with a minimum length of 90 cm. This recommendation combines the stricter species minimums with a community-load allowance so the pairing has realistic long-term space and filtration headroom.

Providing a mix of open swimming space and sheltered areas with rocks, driftwood, or plants will keep both species comfortable and allow natural behaviour.

Specific environmental needs for this combination include: Established Algae (Otocinclus), Shells (Breeding/Hiding), Leaf Litter/Blackwater, Driftwood (Digestion/Hiding), Plants - Floating. Meeting these requirements will help both species thrive.

Both species do well with low (still water) water movement, so a standard filtration setup rated for the tank volume should suffice.

Apple Snail and Betta Macrostoma are the kind of pair that can look acceptable in a shop but become a maintenance problem at home. The main risk is not a single number in the chart; it is the way incompatible behavior, water needs, or pressure on space compounds over time once both fish are established in the same tank.

Feeding time deserves special attention with this pairing. Apple Snail is an aggressive eater that may prevent Betta Macrostoma from getting enough food.

Because Apple Snail is a fast, competitive feeder, consider using sinking pellets or feeding at opposite ends of the setup to ensure Betta Macrostoma receives an adequate share.