Dwarf Baby Tears
Hemianthus callitrichoides 'Cuba'
The smallest carpeting plant in the hobby, forming a lush, tight green lawn in high-tech tanks.
| Care Difficulty | Advanced |
| Lighting | High |
| CO2 Requirement | Required |
| Growth Rate | Medium |
| Placement | Foreground (carpet) |
Overview
Dwarf Baby Tears (Hemianthus callitrichoides 'Cuba') is the smallest carpeting plant in the hobby, forming a lush, tight green lawn in high-tech tanks. It is a advanced-level aquarium plant, best suited to keepers able to provide good light and stable conditions.
This guide covers how to grow Dwarf Baby Tears successfully - its appearance and growth habit, lighting needs, whether it needs CO2, fertilising, planting and placement, propagation, and the common problems to avoid.
Appearance & Growth Habit
The smallest carpeting plant in the hobby, forming a lush, tight green lawn in high-tech tanks.
It is a medium grower used in the foreground (carpet) of the aquascape. Slower growth makes it tidy and low-maintenance, though it can collect algae if light is high and nutrients are low.
Lighting Requirements
Dwarf Baby Tears grows best under high lighting. It needs strong, even light reaching its leaves, so use a good planted-tank LED.
Run lights on a timer for about 6-8 hours a day. Longer photoperiods usually feed algae rather than plants, so increase duration cautiously and watch for any green film.
CO2 & Fertilisation
CO2: Required. CO2 injection is strongly recommended for healthy, dense, colourful growth, and is really needed to get the best from this plant.
Dose a balanced liquid fertiliser (such as API Leaf Zone) for water-column nutrients. Yellowing, holes or stunted leaves usually signal a nutrient deficiency, not disease.
Planting & Placement
Plant or attach Dwarf Baby Tears in the foreground (carpet). Plant small portions into the substrate, spacing them so they grow together over time.
Propagation
Divide the mat into small portions and replant; it demands high light and CO2 to carpet.
Sharing trimmings is part of the fun of the hobby - one healthy plant can fill a tank and stock several more over time.
Common Problems
The most common issue is algae on the leaves, which points to too much light, too few nutrients or weak flow rather than a fault with the plant. Melting (leaves dissolving) after planting is normal as it converts to underwater growth - keep conditions stable and new growth follows.
Keep light, CO2 and fertilisation consistent, remove dying leaves promptly, and avoid burying the crown or rhizome of plants that grow from one.
Is Dwarf Baby Tears Right for Your Tank?
Dwarf Baby Tears is a beautiful plant for keepers able to provide good light, CO2 and stable conditions, rewarding the effort with a standout display. Combine it with our other plant and aquascaping guides to build a lush, balanced planted aquarium.