Remember, you’re buying a living animal, not an object. You can’t keep a giant betta without providing it serious square footage. Because this fish has been so popular, it’s due to its presence and size. But there’s a cost to that size; namely, more space, more filtration, and a lot more patience.
So many first-time owners don’t realize just how big these fish will be. They purchase a tank too small and stress the animal out. Knowing path of their growth is key to keeping your pet healthy. As you can see on the visual guide, it also walks you through life cycle of a betta from fry to adult and demonstrates that size isn’t fixed. At three months a betta may be tiny. But it’s far from done growing. At six months, it has doubled if not tripled in size. The chart illustrates how fish progresses from an inch long up to almost four inches. That’s a steep growth curve and something your tank needs to account for… Not play catch-up with… Down the road.
Why Giant Bettas Need Big Tanks
The ol’ five-gallon bucket isn’t going to cut it very far, either. While some of the smaller-sized bettas can handle a tiny enclosure for a while, the larger ones (e.g., giant strain) is no good with so little water. More water = more dilution = more water stability. And this is what the infographic recommends at the six month point, move up to ten gallons. If you have the space and the money, try to shoot for fifteen or twenty gallons.
More volume means a more stable environment, which means fewer of those nasty nitrate and ammonia spikes. Those spikes mean weak immune systems. Weak immune systems kill fancy fish. Cramped tanks cause stress.
As they age, you’ll see distinct physical characteristics (e.g., coloration) separating males from females. Males becomes brightly colored and develop flowing fins. Females retain muted colors and remain a bit more compact with shorter fins. These physical variations also affect how much space is needed for each sex. Males tend to have larger fins, which require some freedom to flow without getting torn up on sharp decor items. Females are more dexterous in smaller areas but still prefer plenty of room. As the table shows, the fin area and body mass of the male is significantly greater then the female’s.
Because they’re bigger, the set-up in the tank matters more. They gets worn out by strong current, so you need gentle filtration. A low-flow hang-on-back unit is best, as is a sponge filter. While you still want water movement… To exchange oxygen, you don’t want your betta fighting to stay upright. Live plants will also serve to provide places to hide (anubias and java fern work well). If you have only one betta in the tank, the live plants break up the line of sight, which also helps reduce aggression.
Because giant bettas are territorial, most set-ups requires one male per tank. Size is also kept based off diet (i.e., no overfeeding). They’re growing on a high protein pellet diet supplemented periodically with a treat such as bloodworms. But bigger fish create more waste. The settings are important. Monitor your pH, which should be between 6.5 and 7.5, and perform regular water changes.
The environment must remain healthy. You want to see them thrive, not simply exist. Seeing that giant betta flare up in an expansive tank makes all of the effort worth while. It becomes a centerpiece, a reminder of why you begin this hobby.
