What fish and critters can I put in a 27 gallon tank with guppies?

A 27-gallon tank is a great size for a community of guppies! Here's a breakdown of fish and critters you can consider, keeping in mind compatibility and the importance of proper tank setup:

Fish:

* Good Choices:

* Neons, Cardinals, or Rasboras: These schooling fish add vibrant colors and a peaceful presence.

* Ghost Shrimp: Great for cleaning and adding a touch of movement.

* Snails (Nerite, Mystery, etc.): Help with algae control.

* Dwarf Corydoras: These bottom-dwelling catfish are peaceful and help with cleaning.

* Otocinclus Catfish: Great algae eaters.

* Harlequin Rasbora: A more active schooling fish, but still peaceful.

* Consider with Caution:

* Larger Tetras: Some larger tetras like Serpae or Black Skirt tetras can be nippy towards guppies.

* Other Livebearers: Platies, Mollies, and Swordtails can work, but be careful as they can compete for resources and space.

* Other Guppy Varieties: You can mix guppy varieties, but be mindful of size differences and potential for aggression.

Critters:

* Snails (as mentioned above): Nerite, Mystery, Ramshorn, and other snail types can be great additions.

* Shrimp (as mentioned above): Ghost shrimp are safe, but some others like Amano shrimp or Cherry shrimp may be a bit too large for guppies.

* Live Plants: Essential for creating a natural environment, providing hiding spots, and filtering the water.

Important Considerations:

* Tank Size and Stocking: A 27-gallon tank allows for a decent-sized community. However, don't overstock. A good rule of thumb is 1 inch of fish per gallon.

* Water Parameters: Guppies are relatively tolerant, but it's crucial to maintain good water quality with regular water changes.

* Temperament: Make sure all fish are peaceful and compatible. Guppies can be nippy with certain species.

* Tank Setup: Create a varied environment with hiding places, rocks, and plants.

Before you get any new fish or critters, always research their specific needs:

* Water parameters: Make sure they can tolerate the same water conditions as your guppies.

* Diet: Ensure you can provide a balanced diet for all your tank inhabitants.

* Temperament: Avoid aggressive species that could harm your guppies.

By carefully choosing compatible fish and critters and maintaining a healthy tank environment, you can create a thriving community of guppies and other aquatic life in your 27-gallon tank.