MarcoRocks
MarcoRocks (MR Aquatics LLC) is a privately held Homestead, Florida manufacturer and e-commerce seller of 100% natural calcium carbonate aquarium rock and aquascaping supplies, serving saltwater reef hobbyists, professional aquascapers, and public aquariums since 2005.
- Company typePrivate
- Founded2005
- HeadquartersHomestead, United States
- Headcount—
- GTM typeB2C
- OfferingHardware or Manufacturing
What MarcoRocks does
MarcoRocks (legal entity MR Aquatics LLC) is a Homestead, Florida-based manufacturer and direct-to-consumer seller of 100% natural calcium carbonate aquarium rock and aquascaping supplies, serving saltwater reef aquarium hobbyists, professional aquascapers, and public aquarium installations since 2005. The company's core offering is dry limestone rock harvested from ancient reef formations in Florida, processed at a 5-acre facility featuring multiple greenhouses and a dedicated processing building; it is offered in Natural and organic Coralline-treated variants across multiple SKUs (Reef Saver, Premium Shelf, Foundation, Hybrid, Nano Shelf, 2 Side Cut). In 2024, MarcoRocks extended into live rock via a 15,000-gallon in-house saltwater cultivation system producing Aqua-Cultured Live MarcoRock, and reactivated its CITES-permitted Genuine Fiji Pukani Rock line alongside a new rubble variant.
The company monetizes through unit-priced direct e-commerce sales on marcorocks.com (free UPS Ground shipping at the $100 threshold) and a parallel wholesale portal serving aquarium retailers, with no disclosed subscription or recurring revenue component. Supporting accessories — E-Marco-400 aquascaping mortar, MR bonding powder, aragonite sand, frag mounts, and an organic coralline colorant spray — extend the basket. The customer mix is dominated by individual reef-keeping hobbyists, with enterprise reference accounts including the Long Island Aquarium & Exposition Center and bespoke installations such as a 300-gallon Dubai custom tank.
The business is bootstrapped with no external funding, no parent entity, and no management team disclosed in the data. MarcoRocks competes on the basis of U.S. domestic sourcing, a proprietary organic coralline color treatment developed with marine biologists, an aquaculture license (Cert. AQ7223626), and self-described scale as one of the largest producers and shippers of aquarium rock in the USA, exporting worldwide.
MarcoRocks firmographics
Firmographics- Name
- MarcoRocks
- Legal name
- MR Aquatics LLC
- Website
- http://www.marcorocks.com
- Company type
- Private
- Founded year
- 2005
- Operating status
- Operating
- Short description
- MarcoRocks (MR Aquatics LLC) is a privately held Homestead, Florida manufacturer and e-commerce seller of 100% natural calcium carbonate aquarium rock and aquascaping supplies, serving saltwater reef hobbyists, professional aquascapers, and public aquariums since 2005.
- Ownership category
- akta.pro rank
MarcoRocks industry classification
Industry- Product category
- Reef Aquarium Products
- NAICS
- Crushed and Broken Limestone Mining and Quarrying (212312), Ground or Treated Mineral and Earth Manufacturing (327992), All Other Nonmetallic Mineral Product Manufacturing (32799)
- SIC
- Mining & Quarrying Of Nonmetallic Minerals (No Fuels) (1400)
- akta.pro primary industry
- Aquarium & Fish Supplies Retail (CRALAHAI)
- akta.pro secondary industry
- Limestone Quarrying (Industrial & Construction Grade) (IMAKAHAC)
Keywords
Where MarcoRocks is headquartered
LocationHeadquarters
- HQ city
- Homestead
- HQ country
- United States
- HQ region
- North America
Offices2 records
Markets served
MarcoRocks business model
Business model- GTM type
- B2C
- Offering type
- Hardware or Manufacturing
- Cost components
- Supply Chain, Operations, Personnel, Marketing or Sales, Technology or R&D, Infrastructure
Revenue model
- Direct E-commerce Sales: Direct-to-consumer sales through marc rocks.com website with unit-based pricing on rock products. Free shipping threshold at $100.
- Wholesale B2B: Wholesale portal for retailers to purchase in bulk quantities at wholesale pricing
Pricing tiers
| Model | Billing | Price |
|---|---|---|
| Unit Pricing | Pay-as-you-go | Aquacultured Live Rock 10lb - $139.00 |
| Unit Pricing | Pay-as-you-go | E-Marco-400 Mortar Complete Kit - $42.99 |
| Unit Pricing | Pay-as-you-go | Reef Saver Rock - Natural or Coralline - $19.25-$194.00 |
| Unit Pricing | Pay-as-you-go | Fiji Live Rock - $14.99 per pound |
| Unit Pricing | Pay-as-you-go | Maricultured Live Rock - $119.00-$379.00 |
Go-to-market motion1 record
Distribution channels3 records
Marketing channels5 records
MarcoRocks product offering
Product offeringCore offering
MarcoRocks manufactures and sells natural limestone aquarium rock sourced from ancient Florida reef formations for saltwater reef aquariums. The product line includes premium dry rock (Reef Saver, Foundation, Premium Shelf, Hybrid, Nano Shelf, 2 Side Cut), maricultured and aquacultured live rock, Genuine Fiji Pukani live rock, aragonite sand, aquascaping mortar, colorant spray, and frag mounts. Products are pre-cured, highly porous, and offered with an optional organic coralline color treatment.
Product overview
MarcoRocks is a manufacturer and seller of 100% natural aquarium rock made from ancient reef formations for saltwater reef aquariums. The product portfolio centers on natural calcium carbonate limestone rock harvested from ancient coral reefs in Florida, available in both Natural (white) and Coralline (purple-pigmented) variants. Core rock products include Reef Saver Rock (flagship product), Premium Shelf Rock, Foundation Rock, Hybrid Rock, Nano Shelf, and 2 Side Cut varieties. The company also offers specialty Fiji Pukani rock, live rock variants (Maricultured and Aquacultured), and product bundles like 'The Perfect Mix' combo boxes. Supporting accessories include E-Marco-400 aquascaping mortar, MR Powder for bonding, MR Frag Mounts, MR Coralline Colorant Spray, and Aragonite sand substrate. Products are sold directly through their e-commerce platform and through wholesale channels, with free UPS Ground shipping on orders over $100.
Differentiator
Problem solved
Functional benefit
Products and services
- MarcoRocks Reef Saver Rock (Small) Pre-cured, highly porous dry rock for saltwater reef aquariums, designed for aquascaping without the curing required by wild-collected rock. Available in Natural or Coralline organic color-treated variants.
- MarcoRocks Maricultured Live Rock Live reef rock cultivated through a mariculture process in dedicated greenhouses, providing sustainable, healthy live rock for reef aquariums.
- MarcoRocks Aquacultured Live Rock Live rock cultivated through aquaculture of cuttings from existing live rock, grown in saltwater ponds and tanks to produce sustainable, mature live rock.
- Fiji Live Rock Live rock sourced from Fiji and air-shipped to customers, providing naturally harvested live rock for reef aquariums.
- Genuine Fiji Pukani Rock Premium Genuine Fiji Pukani live rock, prized for its highly porous, branchy structure ideal for reef aquascaping.
- Genuine Fiji Pukani Rubble Rock Rubble variant of Genuine Fiji Pukani live rock, providing smaller pieces suitable for filling gaps and creating base layers in reef tanks.
- MarcoRocks Foundation Rock Foundation-grade dry rock for building the base structure of reef aquascapes, available in Natural or Coralline color-treated variants.
- MarcoRocks Premium Shelf Rock Premium shelf-grade dry rock designed for creating elevated shelves and overhangs in reef aquascapes, available in Natural or Coralline variants.
- MarcoRocks Hybrid Rock Hybrid dry rock combining natural and branchy shapes for versatile reef aquascaping, available in Natural or Coralline color-treated variants.
- MR Nano Shelf Nano-sized shelf rock designed for small and nano reef aquariums, available in Natural or Coralline variants.
- MarcoRocks 2 Side Cut Dry rock with two flat-cut sides, enabling placement against aquarium back glass for flush, natural-looking backgrounds, available in Natural or Coralline variants.
- The Perfect Mix Combo Box Curated combo box offering a mix of Foundation, Shelf, and Hybrid rock pieces for a complete reef aquascape, available in Natural or Coralline Foundation variants.
- MR Frag Mounts 9 lb Bag Smaller rock pieces in 9 lb bags designed as frag mounts for coral propagation and aquascape detail work, available in Natural or Coralline variants.
- MR Powder Finely ground rock powder used to fill small gaps and crevices in reef aquascapes, available in Natural or Coralline variants.
- MR Coralline Colorant Spray Organic colorant spray applied to dry rock to accelerate the natural purple/pink coralline algae coloration, without harmful chemicals.
- E-Marco-400 Aquascaping Mortar Complete Kit Complete aquascaping mortar kit for securely bonding reef rock structures inside an aquarium, available in Natural or Coralline color variants.
- Beautiful White Pure Aragonite Sand Pure aragonite sand substrate for reef and saltwater aquariums, naturally high in calcium carbonate and suitable for sand-bed biological filtration.
Quantifiable outcome
- Zero impact to water quality when using 2000 lbs of rock in 20,000 gallon display
- +2 more outcomes
Companies that use MarcoRocks
Customer profileNamed customers5 records
Segments3 records
Ideal customer profiles3 records
MarcoRocks technology and API
TechnologyTechnology focussed No
API detail
- Has API
- No
- API docs
- API detail
Core technology
AI maturity
App detail
Feature3 records
MarcoRocks partnerships and signals
Strategic signalScale indicators6 records
Recent moves6 records
Expansion highlights6 records
MarcoRocks competitors and assessment
Company assessmentDirect peers
- CaribSea: CaribSea is the dominant North American manufacturer of aquarium substrates and decor, including crushed coral, aragonite sands, and dry 'LifeRock' — the most direct competitor to MarcoRocks' dry rock line. Both serve reef hobbyists with calcium carbonate-based products, and CaribSea's LifeRock competes head-to-head with MarcoRocks' Reef Saver and Shelf Rock.
- Pacific Island Imports: Pacific Island Imports is a long-standing importer and distributor of Fiji-based live rock and coral products to the US aquarium market. It competes directly with MarcoRocks' Fiji Live Rock and Pukani offerings and shares the air-freight-from-Pacific logistics model.
- Aqua Forest Aquarium: Aqua Forest Aquarium is an online specialty retailer focused on premium reef-keeping supplies, including rock, sand, and aquascaping products. It competes with MarcoRocks both as a rock supplier and as a curated destination for the same hobbyist segment.
Broad incumbents
- Bulk Reef Supply: Bulk Reef Supply is a large online reef aquarium retailer carrying a broad portfolio including dry rock, live rock, equipment, and supplies. While not a rock manufacturer like MarcoRocks, it competes as a channel and resells third-party rock, making it the primary e-commerce alternative for reef hobbyists shopping for MarcoRocks' products.
- Two Little Fishies: Two Little Fishies is an established US manufacturer of aquarium supplements, substrate additives, and reef conditioning products. While broader in scope than MarcoRocks, it competes in the same retailer shelves and hobbyist ecosystem with products like aragonite sand and reef-friendly consumables.
- Brightwell Aquatics: Brightwell Aquatics manufactures a wide range of reef aquarium water treatment, supplementation, and substrate products sold through the same retailer and hobbyist channels as MarcoRocks. It is an adjacent competitor in the reef-keeping consumables category.
Regional players
- Reef Cleaners: Reef Cleaners is a US-based supplier of cured live rock and cleanup crew organisms serving the saltwater hobby. It overlaps with MarcoRocks on live rock supply and shares the hobbyist customer base, though focused on biological conditioning services rather than rock manufacturing.
- Tropical Marine Centre: TMC is a UK-based aquarium products manufacturer and retailer with live rock, substrates, and aquascaping lines serving European reef hobbyists. It mirrors MarcoRocks' product mix on the opposite side of the Atlantic, competing in the same category but in different geographies.
Emerging players
- KP Aquatics: KP Aquatics is an emerging US aquacultured live rock producer focused on sustainable mariculture of reef rock. It directly competes with MarcoRocks' Aqua-Cultured Live MarcoRock® on the high-value live rock segment, with overlapping mariculture methodology.
Others
- Reef Builders: Reef Builders is a leading reef aquarium media outlet that influences purchasing decisions and reviews products like MarcoRocks' offerings. While not a direct commercial competitor, it functions as a key information channel that shapes the same hobbyist customer base.
Market position
Strengths4 records
Weaknesses4 records
Competitive moat5 records
Key risks5 records
Key highlights7 records
Customer concentration
MarcoRocks social profiles
Digital presenceMarcoRocks compliance and trust
Trust signalCompliance1 record
MarcoRocks financial estimates
Financial estimateRevenue estimate
Valuation estimate
MarcoRocks leadership team
Management profileNumber of profiles
MarcoRocks funding detail
Funding detailFunding overview
Funding rounds
Investors
Funding detail is available on the Subscription and Enterprise plan.Contact sales →
MarcoRocks M&A and investment
M&A and investmentM&A
Investments
M&A and investment is available on the Subscription and Enterprise plan.Contact sales →
Frequently asked questions about MarcoRocks
What does MarcoRocks do?
MarcoRocks manufactures and sells natural limestone aquarium rock sourced from ancient Florida reef formations for saltwater reef aquariums. The product line includes premium dry rock (Reef Saver, Foundation, Premium Shelf, Hybrid, Nano Shelf, 2 Side Cut), maricultured and aquacultured live rock, Genuine Fiji Pukani live rock, aragonite sand, aquascaping mortar, colorant spray, and frag mounts. Products are pre-cured, highly porous, and offered with an optional organic coralline color treatment.
Is MarcoRocks a public or private company?
MarcoRocks is a private company. It is classified as founder individual operated bootstrapped and is currently operating.
When was MarcoRocks founded?
MarcoRocks was founded in 2005.
Where is MarcoRocks based?
MarcoRocks is headquartered in Homestead, United States, in the North America region.
How does MarcoRocks make money?
Two revenue lines are on record. Direct E-commerce Sales are the primary driver. The others are wholesale B2B.
Who are MarcoRocks's main competitors?
Direct peers on record are CaribSea, Pacific Island Imports and Aqua Forest Aquarium. Broad incumbents are Bulk Reef Supply, Two Little Fishies and Brightwell Aquatics. Regional players are Reef Cleaners and Tropical Marine Centre. KP Aquatics is listed as an emerging player. Reef Builders is listed as an others.
Does MarcoRocks have an API?
No public API is recorded for MarcoRocks.
What industry is MarcoRocks in?
MarcoRocks's product category is Reef Aquarium Products. Its primary akta.pro industry code is CRALAHAI, Aquarium & Fish Supplies Retail, with a secondary code of IMAKAHAC, Limestone Quarrying (Industrial & Construction Grade). Its NAICS code is 212312 and its SIC code is 1400.