Pothos vs Red Milfoil

Both plants overlap around the background, which is the biggest reason they belong in the same comparison.

Pothos is a other that usually reaches about 100 cm tall by 50 cm wide. Red Milfoil is a stem plant that usually reaches about 60 cm tall by 8 cm wide.

They also share practical benefits such as line-of-sight breaks, shrimp refuge, and fry refuge, so the decision is not only about looks.

The strongest overlap signals are practical: they overlap strongly in placement, especially around the background; they offer many of the same practical benefits, including breaks lines of sight and good refuge for shrimp and good refuge for fry.

Choose Pothos when its exact growth habit fits the open space you have and you want the finished scape to lean toward its shape, texture, or spread.

Pothos is the easier keep when you want the simpler option.

Pothos makes more sense in lower-light scapes.

Pothos also suits keepers who want low light and no added CO2, with fast growth, low maintenance, and beginner difficulty.

Choose Red Milfoil when its shape, mature size, or planting style gives the scape a cleaner finish than forcing Pothos into the same role.

Red Milfoil is the tidier fit when space is limited.

Red Milfoil gives you more propagation flexibility through stem cuttings and side shoots / offsets.

Red Milfoil fits a routine built around high light and required added CO2, with fast growth, high maintenance, and advanced difficulty.

Role overlap lands at 34/100 and care similarity lands at 40/100. Treat those numbers as a shortcut for the decision, not as a replacement for looking at mature size and placement.

Pothos is attached / wedged to hardscape with no substrate required and feeds mainly as a water column feeder. Red Milfoil is rooted in substrate with nutrient-rich substrate preferred and feeds mainly as a water column feeder.

Lighting expectations are different enough that they do not drop into the same setup equally well.

Also watch that CO2 demand is a meaningful separator between them; their mature height diverges enough that they stop being true one-for-one replacements.

If you need a true substitute, keep looking. This pair is more useful as a contrast because the plants ask for different layout decisions once they mature.

A practical way to decide is to imagine the tank six months from now. The better plant is the one that still fits the same space after several trims, not the one that only looks right on planting day.

Pothos and Red Milfoil look like a comparison pair on the surface, but they usually serve different jobs in a planted tank. The smarter decision is to start from the layout problem you are solving, then choose the plant that belongs in that role instead of comparing them as direct substitutes.