01
Overview
Marsilea is a water fern wearing clover's costume: sold emersed with four-lobed leaves, it usually simplifies to single spade leaflets underwater. What it keeps is the habit that matters, creeping low by rhizome through any reasonable tank, no carbon required.
02
Aquascaping use
It is the patient answer to carpets in low-tech setups, dense enough to read as lawn from a step back. The muted olive tone suits natural, unhurried layouts.
03
Planting
Divide pots into small rhizome sections and plant at close spacing; coverage arrives over months. Once established it is remarkably hard to dislodge.
Nutrient-bearing substrate
04
Light & CO₂
Low to medium light is truly sufficient; growth just tracks the energy given. CO₂ compresses the timeline but changes little else.
05
Substrate & fertilization
Root tabs where the carpet is knitting help it along. Otherwise it lives modestly off the tank's ordinary economy.
Feeding behavior: Root feeder. Nutrient demand: moderate.
06
Growth, trimming & propagation
Barely needed; thin overlapping layers yearly if they build. Its slowness is maintenance-free once you accept it.
Runner separation
07
Common problems
- !Months-long timeline tests patience
- !Submerged leaves rarely keep the clover shape
- !Sparse starts invite algae on open substrate
