Tonina sp. 'Manaus'

Species description

Care, breeding and tankmates

Plant profile

Placement

Midground

Planting it in the midground provides the best view of its elegant, feathery crowns. It is crucial to space out the individual stems slightly to allow intense light to penetrate down to the lower leaves. Avoid placing it in the shadow of larger, broad-leafed plants or hardscape elements.

Botanical form

Stem

This species forms very fine, almost needle-like leaves that branch out from a central stem. The crowns have a slightly softer, more feathery appearance compared to the 'Belém' variety. Its light green, delicate texture creates a highly refined aesthetic in the aquarium.

Growth

Medium

When its strict requirements for soft water, high light, and high CO2 are met, it grows at a moderate pace. Its growth pattern is vertically oriented, producing extremely fine, delicate leaves that differentiate it from other Tonina species. Poor conditions lead to an immediate cessation of growth.

Substrate

Medium

Tonina sp. 'Manaus' benefits greatly from a moderately rich, acidic substrate that facilitates strong root development. While it absorbs some nutrients from the water column, an active aquasoil base ensures a steady supply of micronutrients to its roots. A well-aerated soil layer of about 5 centimeters is optimal, preventing root rot while providing a secure anchor. Like other Tonina varieties, it prefers the slight pH reduction offered by specialized planted aquarium soils.

Column fertilization

Recommended

It relies heavily on liquid fertilization. A daily or frequent dosing schedule is recommended to ensure a constant supply of dissolved nutrients. The lack of micronutrients, particularly iron, will quickly result in the new growth becoming stunted and pale.

Root fertilization

Optional

A premium, nutrient-rich aquasoil is required to support its health and lower the pH of the water. The acidic environment created by the soil is necessary for nutrient absorption. Adding root tabs can occasionally help boost growth in established tanks.

Trimming

Occasional

Trim the plant by removing the top portion and replanting it to maintain a fresh look. The rooted lower portion may sprout lateral branches, but this process is often slower than with other stem plants. Always use sharp scissors to avoid crushing its fragile stem.

Propagation

Cuttings

Propagation is performed by snipping a healthy top cutting and planting it deeply enough into the aquasoil to anchor it. Given the right conditions, it will form new roots within a few days. Handling the delicate stems with care during planting is essential.

Sensitivity

Moderate

It is notorious for its sensitivity and will only tolerate very soft, acidic water with low hardness (KH 0-2). It demands high intensity lighting and a substantial injection of CO2. Any deviation from these parameters often leads to the stems rotting at the base.

Layout role

Midground, group, accent

It provides a unique, highly detailed textural contrast when placed among plants with different leaf shapes. The soft, wispy appearance is perfect for softening transitions in an aquascape. It is a prized rarity often used as a delicate focal point in specialized tanks.