
Montipora Undata
Montipora undata is a reef-building coral in the family Acroporidae, known for the low, wave-like ridges that spiral across its plating colonies — a pattern that gives the species its name, undata, meaning "wavy." Coloration ranges from brown to reddish-brown, with the ridge pattern becoming more pronounced as the colony matures. As a small-polyp stony (SPS) coral that thrives under strong lighting, it can be sensitive to shifts in water quality and light intensity, making it best suited to experienced reefkeepers. For hobbyists willing to fine-tune a stable, well-lit system, it rewards patience with a distinctive textured growth form.
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Montipora Undata key facts
- Care level
- Advanced
- Size
- Colonies to several tens of cm
- Temperature
- 24〜27℃
- Diet
- Mainly nutrition from symbiotic zooxanthellae, supplemented with powdered coral foods and phytoplankton.
- Lighting
- Prefers strong light. As a plating coral it will shade what sits below it once it spreads. Reduce intensity when first adding a colony and raise it gradually over several weeks.
- Flow & Placement
- Detritus settling on the upper plate damages tissue, so give randomised moderate to strong flow. Site it with room to spread and keep it clear of neighbouring corals.
- Water Temperature & Quality
- Water 24-27C, specific gravity 1.023-1.025 (33-35 ppt), KH 8-12, calcium 400-450 ppm, magnesium 1280-1350 ppm. Sudden swings in alkalinity are the most common cause of tissue recession.
- Feeding
- Most of its nutrition comes from photosynthesis by its zooxanthellae. Powdered coral foods and phytoplankton can be offered as a supplement, but stable light and water chemistry matter more than feeding.
- Notes
- The IUCN lists it as Endangered. As a scleractinian it falls under the blanket CITES Appendix II listing, and international trade requires permits.
About Montipora Undata
Montipora undata is a plating coral with wave-like ridges, prized among advanced reefkeepers for its light-loving SPS growth. Here are its key traits, care points, and answers to common questions.
7 things to know before welcoming a Montipora Undata
1Strong Lighting Is Essential
Montipora undata is an SPS coral that prefers strong lighting. In dim spots within the tank, its color and ridge pattern may develop poorly. Positioning it in a brighter zone of the aquarium is generally recommended.
2Sensitive to Water Quality Shifts
Like many SPS corals, Montipora undata reacts poorly to sudden swings in water chemistry. Keeping calcium, alkalinity, and magnesium stable through consistent testing and dosing helps maintain a healthy colony.
3Grows as a Flat, Plating Form
The colony expands into a flat, plating shape and can eventually reach a diameter of several tens of centimeters. Plan its placement with future growth in mind so it has room to spread.
4Distinctive Wavy Ridge Pattern
The colony surface is marked by low, wave-like ridges radiating in concentric patterns — the feature behind its species name, undata. Coloration ranges from brown to reddish-brown, giving each colony its own character.
5Best Suited to Experienced Keepers
Because it requires stable lighting, water chemistry, and flow all at once, this coral is generally considered suitable for advanced keepers. It's best introduced after gaining some experience with coral husbandry.
6Even Water Flow Supports Healthy Growth
Weak or uneven flow can lead to algae buildup or lopsided growth on parts of the colony. Aim for gentle, consistent flow that reaches the entire surface of the colony.
7Acclimate Gradually After Introduction
When moving the coral to a new tank, avoid exposing it abruptly to full lighting or flow — gradual acclimation over time works better. Some paling may appear right after introduction, but colonies often recover as the environment stabilizes.
Frequently asked questions about Montipora Undata
- Q.Can beginners keep Montipora undata?
- A.It's generally considered a coral for advanced keepers, since it needs strong lighting and carefully maintained water parameters. It's best to gain some coral-keeping experience before taking it on.
- Q.How large does this coral grow?
- A.The colony spreads out in a flat, plating form and can eventually reach a diameter of several tens of centimeters. It's worth planning its placement with that eventual size in mind.
- Q.What color variations does it come in?
- A.Coloration ranges from brown to reddish-brown, and the contrast with the wavy ridge pattern on the surface adds visual interest. The same colony can look different depending on the lighting conditions.
- Q.What lighting and flow does it need?
- A.Strong lighting paired with gentle, stable flow that reaches the whole colony is generally recommended. After introduction, it's safer to acclimate it to both lighting and flow gradually over time.
- Q.Can it be kept alongside other corals?
- A.It can share a tank with other SPS corals, but since light and flow requirements vary between species, it helps to check compatibility and leave enough space between colonies. How well corals coexist can also depend on each tank's specific conditions.
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