Watering schedule

How often to water Anubias barteri var. nana 'Petite' (Anubias barteri var. nana 'Petite') — the schedule

Also called Anubias nana Petite, mini Anubias.

More about anubias barteri var. nana 'petite'

Watering at a glance

Base rhythm	Submerged full-time; change 20-30% of tank water weekly
Spring / summer	Spring and summer: water when the top of the soil is dry to roughly a knuckle deep — typically when the soil tells you it is time.
Autumn	Autumn: growth slows, so stretch the interval and let it dry a little more between waterings.
Winter	Winter: water noticeably less — often half as often — because low light and dormancy slow water use right down.
Light	Low light (north window or shaded room)

About Anubias barteri var. nana 'Petite'

Anubias barteri var. nana 'Petite' · also called Anubias nana Petite, mini Anubias · tropical

Anubias barteri var. nana 'Petite' is the miniature cultivar of dwarf Anubias, with tiny leaves barely two centimetres long. It is the go-to foreground accent for nano aquascapes, attached to small stones or branches. As hardy and slow as its parent, it thrives in low light and feeds from the water column.

Ideal humidity: 90-100%

Watch for — Rhizome rot: Even more sensitive than larger forms because of its tiny rhizome. Keep it fully exposed and trim any mushy tissue immediately.

The watering schedule, season by season

Anubias barteri var. nana 'Petite' likes a soak-then-partly-dry rhythm — let the top of the soil dry before watering again, and never leave it standing in water. The base rhythm for anubias barteri var. nana 'petite' is submerged full-time; change 20-30% of tank water weekly, but the real interval moves with the season, the light and the pot — so treat the figures below as a starting point and always confirm with the plant itself.

Spring & summer (active growth): Spring and summer: water when the top of the soil is dry to roughly a knuckle deep — typically when the soil tells you it is time.
Autumn (slowing down): Autumn: growth slows, so stretch the interval and let it dry a little more between waterings.
Winter (rest / dormancy): Winter: water noticeably less — often half as often — because low light and dormancy slow water use right down.

Kept underwater in the aquarium, tolerating soft to hard water at pH 6.0-7.8. If grown emersed it needs constantly saturated substrate and near-100% humidity. Stable, well-oxygenated water keeps the tiny rhizome healthy.

Want this turned into a live reminder that adjusts to your home and the weather? The Growli watering calculator takes your pot size, light and season and returns a starting interval for anubias barteri var. nana 'petite' in seconds.

How to tell anubias barteri var. nana 'petite' needs water

A calendar is the worst way to water anubias barteri var. nana 'petite'. Check the plant and the soil instead — for this species, look for these signals in order:

The top 2-3 cm of soil is dry to the touch (or a knuckle-deep finger test comes back dry).
Lifting the pot, it feels distinctly light.
Leaves droop slightly or lose a little of their gloss just before they truly need water.

The most reliable single check is the first one on that list. When two signals agree, water; when they disagree, wait a day and look again — under-watering anubias barteri var. nana 'petite' for a day is almost always safer than over-watering it.

Overwatering vs underwatering anubias barteri var. nana 'petite'

The two failure modes can look alike at a glance, so check the soil weight and wetness before you decide. For anubias barteri var. nana 'petite' specifically:

Signs you are overwatering

Yellowing lower leaves and a pot that stays wet and heavy for days.
Soft, brown, mushy stems or a sour soil smell — root rot.
Fungus gnats breeding in permanently damp soil.

Signs you are underwatering

Drooping, curling leaves with crispy brown edges that perk up after watering.
The rootball shrinks away from the pot and water runs straight down the sides.
Slow growth and a generally tired, washed-out look.

Watering anubias barteri var. nana 'petite' on a fixed weekly calendar regardless of season is the most common mistake — in dim winter light the same routine drowns it. Check the soil, not the date.

Water quality notes

Tap water is generally fine for anubias barteri var. nana 'petite'. If your water is very hard and you see brown leaf tips, switch to filtered or rainwater.

Seasonal and environmental adjusters

Every figure above shifts with the conditions in your home. For anubias barteri var. nana 'petite', the levers that matter most are:

In the low light this plant tolerates, the soil dries slowly — wait noticeably longer between waterings than the figures suggest.
Pot size and material matter — small terracotta pots dry far faster than large glazed or plastic ones.
Lifting the pot to feel its weight is more reliable than any calendar for judging when to water.

Pot choice is part of this too — work out the right size with the pot size calculator, since a pot that is too big stays wet long enough to rot the roots of anubias barteri var. nana 'petite'.

Anubias barteri var. nana 'Petite' watering — frequently asked questions

How often should I water anubias barteri var. nana 'petite'?

Water anubias barteri var. nana 'petite' submerged full-time; change 20-30% of tank water weekly. Spring and summer: water when the top of the soil is dry to roughly a knuckle deep — typically when the soil tells you it is time. Winter: water noticeably less — often half as often — because low light and dormancy slow water use right down.

How do I know when anubias barteri var. nana 'petite' needs water?

The top 2-3 cm of soil is dry to the touch (or a knuckle-deep finger test comes back dry). Lifting the pot, it feels distinctly light. Leaves droop slightly or lose a little of their gloss just before they truly need water. The single most reliable test for anubias barteri var. nana 'petite' is the first signal on that list — checking the soil or the plant directly always beats watering by the calendar.

What does an overwatered anubias barteri var. nana 'petite' look like?

Yellowing lower leaves and a pot that stays wet and heavy for days. Soft, brown, mushy stems or a sour soil smell — root rot. Fungus gnats breeding in permanently damp soil. Watering anubias barteri var. nana 'petite' on a fixed weekly calendar regardless of season is the most common mistake — in dim winter light the same routine drowns it. Check the soil, not the date.

What are the signs of an underwatered anubias barteri var. nana 'petite'?

Drooping, curling leaves with crispy brown edges that perk up after watering. The rootball shrinks away from the pot and water runs straight down the sides. Slow growth and a generally tired, washed-out look.

Can I use tap water on anubias barteri var. nana 'petite'?