How many tropical fish choices for a 90 liter tank?

It's impossible to give you a specific number of tropical fish choices for a 90-liter tank without more information. Here's why:

* Fish Size: Different tropical fish species vary greatly in size. Some stay small, while others grow quite large.

* Fish Temperament: Some fish are peaceful and can coexist in groups, while others are aggressive and need their own space.

* Water Parameters: Each species has specific requirements for water temperature, pH, and hardness. Your tank needs to be suitable for the chosen species.

* Tank Setup: A densely planted tank can hold more fish than a sparsely planted one.

Here's a better approach:

1. Choose Your Fish: Research different tropical fish species you find appealing. Consider their size, temperament, and water parameter requirements.

2. Plan Your Stocking: Use online fish stocking calculators or consult with a local fish store professional. These resources will help you determine how many of each species you can safely keep in your 90-liter tank.

Remember: Overstocking a tank is harmful to your fish. Always prioritize their well-being by choosing a compatible combination of fish and providing ample space for them to thrive.