Planted Tank Compatibility Guide — Best Fish & Plant Combinations

Aquarium tanks combining aquatic plants and tropical fish represent the true essence of aquascaping. Small schools of colorful tropical fish swimming through lush green aquatic plants create a miniature paradise that captures the beauty of nature. However, not all tropical fish are suitable for planted aquariums. Some species eat aquatic plants, uproot them, dig up the substrate—these fish can destroy a carefully designed aquatic landscape.

Characteristics of Fish Suitable for Planted Aquariums

Fish appropriate for planted aquarium layouts share several common traits:

• Low herbivory: Species that do not eat aquatic plants, or eat very little of them
• Non-substrate-disturbing behavior: Species that do not dig up substrate and expose plant roots
• Small body size: Large fish can knock over or break plants while swimming
• Peaceful temperament: Species prone to territorial disputes may uproot plants
• Preference for slightly acidic to neutral water: Since most aquatic plants prefer weakly acidic water at pH 6.0-7.0, fish that thrive in the same water conditions are ideal

Recommended Combinations of Tropical Fish and Aquatic Plants

Here are some specific combination patterns.

Characin and Stem Plant Layout

Small characins such as neon tetras, cardinal tetras, and rummy-nose tetras are the classic choice for planted aquariums. Their schooling behavior creates beautiful contrast against the green aquatic plants. Plant stem plants like rotala rotundifolia, ludwigia, and green rotala densely in the background, cryptocorynes in the middle ground, and foreground plants like glossostigma or cuba pearl grass in the front to create a layout with depth.

Rasbora and Shade-Loving Plant Layout

Rasbora heteromorpha and rasbora espei have peaceful temperaments and pair exceptionally well with aquatic plants. When combined with shade-loving plants such as anubias nana, microsorum, and bolbitis, you can maintain an aquarium without CO2 supplementation. Attach anubias and microsorum to driftwood to create a natural atmosphere.