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SKU: I MA0114

Nerite Snail – Nerita spp.

$2.49
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Size: Varies
Nerite Snails (Nerita spp.) are small, peaceful marine algae grazers that help clean rock and other hard surfaces. Their attractive patterned shells and compact size make them a useful addition to a diversified reef aquarium cleanup crew.
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Description and Aquarium Care

The Nerite Snail (Nerita spp.) is a small marine gastropod belonging to the family Neritidae. Nerites are recognizable by their compact, rounded shells and attractive natural patterns, which can vary considerably among species and individuals. The snails pictured here display intricate mottled and checkered markings in shades of brown, cream, gray, and reddish brown.

Marine Nerita species naturally occur primarily in tropical intertidal environments, where their strong muscular foot allows them to grip rocks and other hard surfaces. They are herbivorous grazers that use their radula to scrape algae from these surfaces. BiodiversitySG

In the saltwater aquarium, Nerite Snails make useful members of a diversified cleanup crew. They spend much of their time moving across rockwork, aquarium walls, and other hard surfaces in search of algal growth. Their relatively small size also allows them to work areas that may be less accessible to larger grazing snails.

Because Nerita species naturally inhabit intertidal environments, they are capable climbers and may travel to or above the aquarium's waterline. A secure lid and attention to openings around plumbing and overflows are recommended.

Care Guide

Scientific Name: Nerita spp.
Family: Neritidae
Common Name: Nerite Snail
Care Level: Easy
Temperament: Peaceful
Reef Compatibility: Generally reef safe
Diet: Herbivore / algae grazer
Feeding: Grazes naturally occurring algae and microalgal growth from rock, aquarium walls, and other hard surfaces. Supplement with an appropriate marine algae-based food when natural growth is insufficient.
Aquarium Placement: Rockwork, aquarium walls and other hard surfaces
Temperature: Approximately 74–80°F
Specific Gravity: Approximately 1.023–1.026
pH: Approximately 8.1–8.4
Activity: May be particularly active during lower-light periods, depending on species
Special Considerations: Keep the aquarium covered because these intertidal snails may climb above the waterline. Maintain stable salinity and other water parameters, and avoid copper-based medications with marine invertebrates.

Marine nerites are particularly well adapted to hard surfaces—their muscular foot and mucus help them maintain a strong grip on rocks and other substrates while grazing.

Invert Problems and Solutions

Excess Algae

Causes

Excess algae is typically driven by elevated nutrients—especially nitrates and phosphates—from overfeeding, waste buildup, or insufficient filtration. Excessive or prolonged lighting can accelerate growth, particularly when nutrients are already present. Inadequate cleanup crews and poor water flow allow algae to establish and spread, especially in areas where detritus accumulates.

Solution

Control excess algae by reducing nutrient input and improving export through regular maintenance, proper feeding, and effective filtration. Introduce a balanced cleanup crew such as Blue Leg Hermit Crabs, Trochus, and Astraea Snails to continuously graze algae. Increase water flow to prevent buildup in dead spots, and for heavy hair algae outbreaks, a Sea Hare can provide rapid control—just be sure to supplement with nori once the algae is depleted.

Bubble Algae

Causes

Bubble algae (Valonia) is most often driven by elevated nutrients, particularly phosphates and nitrates from overfeeding, waste buildup, or insufficient filtration. It can also spread rapidly when bubbles are accidentally ruptured during removal, releasing spores into the water. Low-flow areas where detritus collects further encourage growth, and a lack of natural predators allows it to establish and expand unchecked.

Solutions

Control bubble algae by addressing both the source and the outbreak. Introduce Emerald Crabs (Mithraculus sculptus) as a natural grazer to help reduce existing algae. Improve nutrient management through careful feeding, regular maintenance, and efficient filtration. Increase water flow to eliminate dead spots where debris accumulates, and when removing algae manually, gently extract entire bubbles without popping them to prevent further spread.

Aiptasia Pests

Causes

Aiptasia often enters reef aquariums as hitchhikers on live rock or coral bases and can quickly spread under nutrient-rich conditions. They reproduce rapidly through both budding and fragmentation, especially when disturbed or damaged. Even small, unseen remnants can regrow into new individuals, making early infestations easy to underestimate. Once established, they can outcompete corals and spread aggressively if not addressed early.

Solutions

Eliminate Aiptasia using natural predators such as Peppermint Shrimp (Lysmata wurdemanni), Kukhenthal Shrimp or Berghia Nudibranchs, which specifically target these pests. Avoid manually disturbing or attempting to scrape them off, as this often causes them to multiply and spread further. Consistency is key—allow predators time to work and monitor progress. Maintaining stable water conditions and controlling nutrients will also help limit their ability to expand and re-establish.

Detritus

Causes

Detritus buildup occurs when uneaten food, fish waste, and organic debris accumulate in low-flow areas of the aquarium. Poor circulation and inadequate cleanup crews allow this material to settle into sand beds and rockwork, where it begins to break down. Over time, this decomposition releases nutrients back into the system, contributing to declining water quality and fueling nuisance algae. These “dead spots” often go unnoticed until visible issues begin to appear.

Solutions

Improve water movement to keep debris suspended so it can be removed by filtration and mechanical export. Add natural scavengers such as Nassarius Snails, Serpent Stars, and Fighting Conchs to stir the substrate and consume organic waste. Regular maintenance—like light siphoning during water changes and adjusting flow patterns—helps prevent long-term accumulation. A well-balanced cleanup crew paired with proper flow will keep your system cleaner and more stable over time.
Inverts aren’t just part of the reef—they’re what keep it functioning.
— Dr. Mac, Pacific East Aquaculture

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General Care for Mixed Reef Tanks

Lighting

Lighting

Aim for moderate, well-distributed lighting that supports both LPS and SPS—enough intensity for growth without overwhelming more light-sensitive species.

Flow

Flow

Water flow should be varied and indirect, creating a gentle, chaotic movement that keeps detritus suspended while allowing fleshy corals to expand naturally.

Feeding

Feeding

Feed lightly but regularly with a mix of fine particulate Live Foods and occasional meaty foods to support overall health without overloading nutrients.

Parameters

Parameters

Most importantly, maintain stable water parameters—temperature 76–80°F, salinity ~1.025, alkalinity 8–9 dKH, calcium 400–450 ppm, and magnesium 1250–1350 ppm.
A successful mixed reef tank is built on balance and consistency. 
Stability, more than perfection, is what drives long-term success in any reef aquarium.
— Dr. Mac, Pacific East Aquaculture

Order FAQs  

About Our Facility

Q: Are your corals aquacultured?
A: Yes. Many of our corals are grown in our Maryland Certified & Licensed Coral Aquaculture Facility.

Q: Why choose aquacultured corals?
A: Aquacultured corals are:
- More sustainable
- Better adapted to aquarium life
- Typically hardier than wild specimens

Q: Who selects and grows your corals?
A: Our corals are grown and curated by Dr. Mac a Board Certified Veterinary Pathologist with decades of hands-on reef experience.

Ordering & Shipping

Q: What does WYSIWYG mean?
A: “What You See Is What You Get.” The exact coral shown in the photo is the one you will receive.

Q: Can I request a specific color or variation?
A: For WYSIWYG items, what’s pictured is what you get. For non-WYSIWYG items, we do our best to match color and size, but natural variation occurs.

Q: Can I combine multiple orders to save on shipping?
A: Yes—contact us before shipping and we’ll consolidate when possible.

Q: How are corals and fish shipped safely?
A: We use insulated boxes, temperature control (heat/cold packs), and overnight delivery to ensure safe arrival.

Q: What days do you ship?
A: Typically Monday–Wednesday to avoid weekend delays.

Q: Do I need to be home for delivery?
A: Yes—someone should be available to receive livestock immediately.

Q: What if my coral or fish arrives dead (DOA)?
A: Contact us within a specified timeframe (e.g., 2 hours) with clear photos, and we will resolve it quickly.

Q: What voids the guarantee?
A: Missed deliveries, improper acclimation, or delays beyond our control.

Live Arrival Guarantee

Q: What if my coral or fish arrives dead (DOA)?
A: Contact us within a specified timeframe (e.g., 2 hours) with clear photos, and we will resolve it quickly.

Q: What voids the guarantee?
A: Missed deliveries, improper acclimation, or delays beyond our control.

Acclimation & First 24 Hours

Q: How do I acclimate new livestock?
A: Float to match temperature, then drip acclimate before placing in tank.

Q: Should I dip corals before adding them?
A: Yes but be careful, coral dips help prevent pests but use caution. Certain corals might benefit from a short quarantine period instead of a dip so as to further stressing them.

Q: Why does my coral look closed or stressed?
A: This is normal after shipping—most corals open within 24–72 hours.

Aquarium Setup & Compatibility

Q: Where should I place my coral in the tank?
A: Placement depends on the coral type (LPS, SPS, soft). Lighting and flow requirements vary—check each product description.

Q: Can different corals touch each other?
A: Many corals have sweeper tentacles and can sting neighbors. Always allow space.

Q: How fast will my coral grow?
A: Growth depends on species, lighting, water quality, and feeding.

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