Aquarium plant

Mini Fissidens

Mini Fissidens (Fissidens fontanus) aquarium plant care.

Mini Fissidens TL;DR

Light: medium · CO2: recommended · Difficulty: intermediate · Floating: no.

Mini Fissidens (Fissidens fontanus) is a popular aquarium plant.

What lighting does Mini Fissidens need?

Target medium lighting. PAR: 30-60.

Is CO2 required for Mini Fissidens?

CO2 recommended.

What substrate and nutrients does Mini Fissidens need?

Plant in nutrient-rich aquasoil with root tabs. Liquid fertilizer dosed weekly.

How is Mini Fissidens propagated?

Cut healthy stems and replant.

Where to buy

Browse Mini Fissidens from vetted Fast Aquatics plant vendors.

Mini Fissidens FAQ

How much light does Mini Fissidens need?

Mini Fissidens is rated as a medium-light plant, with a target of about PAR 30-60 at the leaves. Medium light is roughly what a mid-range planted-tank LED delivers over a standard-depth tank; going brighter without more CO2 and fertilizer usually shows up as algae rather than faster growth. CO2 is recommended for it, and its care difficulty is listed as intermediate.

Does Mini Fissidens need CO2?

CO2 is recommended for Mini Fissidens. It can get by without injection, but growth and leaf form are better with a steady CO2 supply. It is a medium-light plant, with a target of about PAR 30-60 at the leaves. For nutrients: plant in nutrient-rich aquasoil with root tabs. Liquid fertilizer dosed weekly. Keep light, CO2 and fertilizer in balance, because raising one without the others is the most common cause of algae in planted tanks.

How do you propagate Mini Fissidens?

Cut healthy stems and replant. Trim stems just above a leaf node, push the cut tops into the substrate, and the trimmed base will usually branch and regrow. New growth comes in fastest when the tank matches its needs: medium light, with CO2 recommended.

Is Mini Fissidens beginner-friendly?

It can be, with some planted-tank experience: Mini Fissidens is listed at intermediate difficulty. It needs medium light, with a target of about PAR 30-60 at the leaves, CO2 is recommended, and for nutrients: plant in nutrient-rich aquasoil with root tabs. Liquid fertilizer dosed weekly. Stable light, nutrients and water changes matter more than any single product. Check these needs against your current setup before buying.

Sources and references

Mini Fissidens taxonomy and care recommendations cross-checked against the following authoritative references and our internal vendor + breeder database.

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