Dwarf Baby Tears (Micranthemum callitrichoides)

Description

Dwarf Baby Tears for Sale — The World’s Smallest Aquarium Plant and the Gold Standard of Carpet Plants

If you’ve been searching for Dwarf Baby Tears for sale, Quinn’s Fins grows Micranthemum callitrichoides — commonly known as HC Cuba or simply HC — right here in our on-site nursery greenhouse. Dwarf Baby Tears is widely considered the most iconic and prestigious carpeting plant in the planted aquarium hobby. First discovered by aquascaping pioneer Holger Windeløv in 2003 in a rocky riverbed 90 kilometers east of Havana, Cuba, and introduced to the aquarium trade by Tropica in 2004, it has since become the defining foreground plant of high-end Iwagumi and Nature Aquarium layouts worldwide. Its tiny, round-to-ovoid bright green leaves — measuring just 3 to 4 millimeters, making this the smallest-leaved aquarium plant in the world — creep along delicate filiform stems to form a dense, fine-textured carpet that pearls with oxygen bubbles under strong lighting, creating one of the most breathtaking visual effects achievable in a planted tank. Dwarf Baby Tears for sale at Quinn’s Fins is available in two formats — a 2″ pot (SKU 6104-1, $6.99) and a pre-grown 3″×5″ coco fiber mat (SKU 6104-2, $12.99) for instant carpet placement.

Why Dwarf Baby Tears for Sale Is the Most Sought-After Carpet Plant in Aquascaping

HC Cuba holds a unique position in the planted aquarium world — it is simultaneously the most visually spectacular carpet plant available and one of the most technically demanding to grow well. Its rewards are extraordinary for aquarists who can meet its requirements.

• The world’s smallest aquarium plant — leaves just 3–4mm, creating the finest, most delicate carpet texture available
• Dense bright green carpet within 3–4 weeks under optimal conditions — transforms the aquarium foreground completely
• Spectacular oxygen pearling under high light — tiny bubbles of oxygen collect on leaf surfaces creating a living, sparkling carpet effect
• Iconic in Iwagumi and Nature Aquarium layouts — the defining foreground plant of high-end aquascaping
• Can also be attached to driftwood and hardscape — forms beautiful overhanging cushions on elevated surfaces
• Shrimp safe — dense carpet provides excellent foraging and cover for shrimp and small invertebrates
• CO2 indicator plant — spindly upward growth signals CO2 deficiency; compact creeping growth signals optimal CO2 levels
• Available on coco fiber mat — instant carpet placement without individual stem planting

Growing Dwarf Baby Tears — Care at a Glance

Critical Honest Assessment — CO2 Is Essential

Dwarf Baby Tears requires CO2 injection. Growing HC Cuba without CO2 has an approximately 95% failure rate — the plant grows slowly, stems reach upward instead of creeping, leaves become tiny and sparse, and the carpet never forms. Liquid carbon supplements (Seachem Excel) provide marginal benefit in very small, strongly lit tanks but are not a reliable substitute for pressurized CO2. If you are running a low-tech aquarium without CO2 injection, we strongly recommend Micranthemum ‘Monte Carlo’ as a significantly easier carpet alternative that delivers a very similar visual result. Dwarf Baby Tears is the plant for aquarists who have CO2 in place and are ready for the rewarding challenge of growing one of the most beautiful plants in the hobby.

Light

High to very high lighting is required — more than almost any other aquarium plant. Under strong light, HC Cuba grows compact and low, developing the dense carpet form it is famous for and triggering spectacular oxygen pearling. In lower light, stems grow upward instead of creeping — a clear sign of insufficient light. Provide high-quality full-spectrum LED lighting for 8–10 hours daily. In deeper tanks, ensure light intensity is sufficient at the substrate level — a PAR meter at the substrate is the most reliable way to verify adequate light intensity.

CO2

Stable CO2 injection at 20–30 ppm is the single most important factor for Dwarf Baby Tears success. HC Cuba is sensitive enough to CO2 levels that it can be used as a living CO2 indicator — compact creeping growth indicates optimal CO2; spindly upward growth and yellowing indicate deficiency. Maintain stable CO2 throughout the photoperiod and ensure good water circulation to distribute CO2 evenly across the foreground.

Substrate

Fine-grained nutrient-rich aquarium soil — ADA Aqua Soil, Fluval Stratum, or equivalent — is strongly recommended. The plant’s tiny, delicate root system penetrates and anchors best in fine-grained active substrates. In coarser gravel, the plant struggles to root and is easily uprooted. Avoid placing this plant where fish or water flow can continuously dislodge stems before they establish.

Planting the 2″ Pot Format

Remove the plant from the pot and all growing media including rockwool. Separate into small portions — each portion should contain several stems. Use aquascaping tweezers to plant small tufts 1–2 cm apart across the foreground. Plant at a slight angle to help anchor delicate stems. Keep water level low during initial establishment if possible — the Dry Start Method (DSM), where plants establish in high humidity before flooding, dramatically improves success rates by giving roots time to anchor before submersion.

The Coco Fiber Mat Format — Instant Carpet

The 3″×5″ coco fiber mat arrives with Dwarf Baby Tears pre-grown and established across the mat surface. Simply cut the mat to shape and press it firmly onto the foreground substrate — weight it down with small stones or substrate if needed until roots anchor. The coco fiber mat eliminates the most difficult part of HC Cuba cultivation — initial stem planting and anchoring — by delivering an already-established carpet section ready for placement. This is the easiest and fastest way to establish a Dwarf Baby Tears carpet in your aquarium.

Water Parameters

• Temperature: 70–82°F (21–28°C); optimum around 77°F (25°C)
• pH: 6.0–7.5
• Hardness: Soft to moderately hard
• CO2: 20–30 ppm — stable injection essential
• Flow: Moderate — enough to distribute CO2 but gentle enough not to dislodge stems

Fertilization

Regular comprehensive liquid fertilizer dosing is essential — particularly iron, nitrogen, and micronutrients. Iron deficiency appears as yellow shoot tips and should be addressed immediately with iron supplementation. Keep nitrate levels adequate (10–25 ppm) to support vigorous growth. If keeping shrimp in the same tank, use shrimp-safe fertilizers and carefully manage CO2 levels to avoid stressing invertebrates.

Maintenance

Trim HC Cuba regularly with fine aquascaping scissors — the carpet lifts and layers over time and periodic trimming keeps it flat, dense, and compact. Trimming also encourages lateral spreading and prevents the plant from reaching upward. Remove trimmings completely from the tank to prevent them from settling and rotting in the carpet. Monitor CO2 levels regularly — any decline in CO2 is immediately visible in the growth pattern.

Two Ways to Buy Dwarf Baby Tears for Sale at Quinn’s Fins

Dwarf Baby Tears for sale at Quinn’s Fins is available in two formats:

• 2″ Pot (SKU 6104-1) — $6.99: Nursery-grown in a 2″ pot. Remove plant and all growing media including rockwool before planting. Separate into small tufts and plant with aquascaping tweezers 1–2 cm apart across the foreground. Rinse thoroughly before planting. Dry Start Method strongly recommended for best initial establishment results.
• Coco Fiber Mat 3″×5″ (SKU 6104-2) — $12.99: Dwarf Baby Tears pre-grown on a natural coco fiber mat. Cut to desired shape and press firmly onto the foreground substrate. Weight down until roots anchor. The fastest and easiest way to establish an HC Cuba carpet — no individual stem planting required.

Nursery-Grown at Quinn’s Fins

Every Dwarf Baby Tears for sale at Quinn’s Fins is grown right here in our on-site nursery greenhouse — not drop-shipped or bulk-sourced. We grow what we sell.

For more on growing Dwarf Baby Tears and HC Cuba in planted aquariums, visit the Buce Plant HC Cuba care page or browse our full selection of aquatic plants at Quinn’s Fins.

Dwarf Baby Tears Plant Details