Size: 10 – 40 cm tall, 2 – 3 cm in width
Position and Usage: Midground to background placement
Growth rate: Moderate
Lighting: 3/5 – 5/5
Water Conditions: 20 - 30° C; soft water required
Special Requirements: Acidic substrate
Tonina fluviatilis is a decorative stem plant of adjustable height. Native to the shallow, slow-moving waterways of South America, Central America, and Mexico, this bright-green species makes an excellent midground to background accent. It is, however, a famously delicate variety that will require careful attention in order to thrive.
Tank water should be at least moderately soft (with a dH of 3 - 8 and a kH below 4), and while T. fluviatilis is not a strong root feeder, an acidic substrate will promote healthy growth. Specimens will require CO2 supplementation, and occasional micronutrient additions will enhance vibrancy.
This plant may grow slowly, but intense lighting (equal to or exceeding 1 watt per liter) will encourage healthy growth; vertical stems may reach a tank’s surface if given time. Lateral shoots can be clipped (1-3 inches) and used to propagate. Take special care to ensure that neighboring plants do not shade T. fluviatilis as it is a sensitive variety especially susceptible to competition.