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Conditioners, RODI systems, marine salt mixes
Plant fertilizers, liquid CO₂, reef dosing pumps, calcium & alkalinity
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In community tanks
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5,380 matching items · Most used first
OtherTropic Marin
Replacement reagents from Tropic Marin for the Pro Nitrite and Nitrate test kit. The refill replenishes the consumed test chemicals so the existing comparator, vials, and color cards can keep being used.
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OtherReal Reef Solutions
Elevate Your Aquascape with Show-Stopping Plate Rock Lightweight & Porous for Beneficial Bacteria Growth Eco-Friendly Alternative to Live Rock Ideal Surface for Corals Like Zoanthids, Anemones & Clams Supports Natural Water Flow & Reduces Detritus Buildup Made from Eco-Friendly, Natural Calcium-Based Materials The Real Reef "Show Size" Plate Coral Rock brings stunning, natural-looking formations to your saltwater aquarium while serving as a biological powerhouse for beneficial bacteria. Made from eco-friendly, calcium-based materials, this rock mimics the structure and function of real reef rock, creating an ideal environment for coral growth and improving overall water quality.
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OtherReal Reef Solutions
Real Reef Fancy Branch Rock is a 10-pound box of hand-made branch rock inspired by classic Tonga Branch Rock, made in the USA from natural calcium-based materials as a sustainable, eco-friendly alternative to wild live rock. Pre-cured in saltwater and reef safe with no pests or hitchhikers, it features coralline-inspired purple, pink, and red colors that stay bright. Ideal for negative space aquascaping and minimalist reef designs, offering improved water flow and open fish swimming space.
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OtherReal Reef Solutions
Real Reef Mini Mix Rock is a curated pre-cured mix of mini arches and small reef rock made from eco-friendly calcium-based materials, designed for 10-20 gallon saltwater aquariums with porous structure for beneficial bacteria.
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OtherReal Reef Solutions
The Real Reef Original Rock Mixed Box (25 lbs) is a premium aquascaping rock made in the U.S.A. from natural calcium-based materials. It is a sustainable alternative to wild live rock, pre-cured in saltwater and free of pests and hitchhikers, with non-toxic coralline-inspired colors that stay bright over time.
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Substrates & AquascapingReal Reef Solutions
A curated 16-piece box of Real Reef man-made aquascaping rock sized for 20-40 gallon aquariums; porous, bio-active rock that replicates coralline-encrusted coral skeleton without the pests of wild-harvested live rock.
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SupplementationTwo Little Fishies
Two Little Fishies ReBorn Calcium Reactor Media is a premium aragonite media made from sustainably collected fossilized coral skeletons, closely matching the natural composition of reef-building materials. Its coarse, highly porous structure promotes excellent water flow and even CO2 penetration so the media dissolves evenly, releasing calcium, carbonate alkalinity, and beneficial trace elements for coral skeletal growth; available in 8.8 lb and 44 lb sizes for saltwater aquariums.
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Tank & FurnitureAdaptive Reef
The Adaptive Reef Recessed Faceplate (White) is a custom faceplate for the Adaptive Reef Controller Cabinet that provides a clean, professional installation with optimal wire management for Apex, GHL Profilux, Trident, DOS, and other controllers; cabinet sold separately.
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Water PurificationG.A. Murdock
Red 1/4 inch Mur-lok LLDPE polyethylene tubing is used in reverse osmosis systems to identify source water lines before filtration. It is BPA-free, FDA approved, and NSF 58 certified, works with all 1/4 inch push-connect fittings, and comes in 10 to 100 ft lengths.
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Water PurificationG.A. Murdock
Mur-lok Red 3/8-inch Polyethylene RO Tubing is BPA-free, FDA-approved, NSF 58 certified tubing for reactors and reverse osmosis systems, typically used to designate unfiltered source water, available in 25 ft or 50 ft lengths.
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OtherSkimz
Skimz Red Colour-Tracer Silicone Tubing lets you color-code your dosing pump tubing for easy identification of different additives or flow directions. This flexible, kink-resistant FDA-compliant silicone tubing (4mm ID / 6mm OD) is sold as a single piece in 2 meter, 4 meter, or 8 meter lengths.
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Substrates & AquascapingNot specified
A highly porous red volcanic gravel suitable for freshwater aquarium use. Inert and safe for water chemistry, its lightweight, porous granules work as both substrate and filter media, providing abundant surface area for beneficial bacteria and biofilm colonization. A preferred substrate for Neocaridina shrimp such as Cherries; rinse before use. Available in 2, 10, and 20 pound bags.
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SupplementationBlue Life USA
Blue Life USA Red Cyano Rx is a reef-safe powdered treatment that quickly eliminates disease-causing cyanobacteria from live rock, coral, and sand in saltwater aquariums without discoloring the water or harming inhabitants or beneficial bacteria when used as directed. Dose one level scoop per 10 gallons after siphoning out visible cyano (with skimmer off and carbon/ozone discontinued), then perform a 25% water change after 24 hours; one container treats 400 gallons.
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Substrates & AquascapingCeramicNature
The CeramicNature Red D-Shaped Breeding Cave (Medium) is handmade from aquarium-safe ceramic in the Netherlands. Designed for the L46 (Hypancistrus zebra) and other small L-numbers up to 12 cm long, its closed-back design encourages males to guard eggs and provides secure shelter for small bottom-dwelling species.
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Substrates & AquascapingAqua Natural
Aqua Natural Red Flint Gravel Substrate is a deep-red 4-6mm pebble river gravel for freshwater aquariums, usable as a cap layer for planted tanks, with minimal effect on water chemistry.
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OtherBulk Reef Supply
Red Furniture Grade 45° Elbow Slip x Slip is a glossy red PVC plumbing fitting that joins two pipe runs at a 45-degree angle for aquarium plumbing. It is injection-molded from UV-resistant furniture-grade PVC with smooth, unprinted tapered sockets on both ends, available in 1/2 in. to 1-1/2 in. sizes.
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OtherBulk Reef Supply
This red furniture-grade PVC 90° elbow fitting (slip x slip) connects two pipe segments at a right angle for aquarium plumbing and furniture-style builds. It is injection-molded from furniture-grade PVC with a high-gloss, unprinted, UV-resistant red surface, offers deeper sockets and greater impact strength than standard plumbing fittings, and is available in 1/2", 3/4", 1", and 1 1/2" sizes.
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OtherBulk Reef Supply
The red furniture-grade external coupling fitting (slip x slip) has longer, deeper sockets for added plumbing stability, with a high-gloss, UV-resistant colored PVC finish.
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OtherBulk Reef Supply
A red furniture-grade PVC end cap with a slip (socket) connection that caps the end of Schedule 40 PVC pipe, available in 3/4", 1", and 1-1/2" sizes. It has a high-gloss, UV-resistant, pigmented surface with tapered edging, a deep socket for a secure fit, and is injection-molded from furniture-grade PVC compound with 5x the impact strength of standard plumbing fittings.
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OtherBulk Reef Supply
This furniture-grade red PVC tee fitting (slip x slip x slip) is a T-shaped Schedule 40 plumbing connector with three sockets forming two adjoining 90-degree angles. Injection-molded from glossy, UV-resistant furniture-grade PVC compound that is 5x stronger than standard plumbing fittings, it is available in 1/2 in., 1 in., and 1-1/2 in. sizes and 7 colors.
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Substrates & AquascapingBuce Plant
Red Lava Rock is a highly porous natural volcanic stone in deep brick-red to burnt-orange tones, widely used in planted tanks and African Cichlid setups. Its textured, hole-filled surface provides massive surface area for beneficial nitrifying bacteria and is ideal for anchoring mosses, ferns, and other epiphytic plants; it also works as a textured accent in terrariums and paludariums.
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Substrates & AquascapingUltum Nature Systems
Red Manten Stone is a popular aquascaping stone recognized for its rich red-brown color, rugged texture, and naturally layered appearance. Its warm, earthy tones add contrast and dimension to planted aquariums, and it pairs beautifully with green plants and mosses.
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Substrates & AquascapingUltum Nature Systems
Red Petrified Wood is a natural stone formed from the fossilized remains of ancient trees and terrestrial vegetation. Over millions of years, organic materials have been replaced by minerals to create a dense, beautiful stone that retains the intricate grain and character of its prehistoric origin. This variety features deep brick-reds and warm earthy tones, perfect for recreating a submerged redwood forest. Also suitable for terrariums, paludariums, or bioactive enclosures. Pieces range from 5-12 inches. Available in 10lb ($44.99), 20lb ($74.99), and 30lb ($99.99) packs.
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Other3F
Red plankton frozen fish food (100 g) contains an omnivorous copepod, Calanus sp.; this zooplankton is rich in natural carotenoid pigments that significantly enhance the color of your marine organisms. Excellent food for all your fish, corals, and invertebrates.
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Substrates & AquascapingUltum Nature Systems
Red River Slate is a natural red rock with occasional brown and white streaks and a semi-smooth finish. The coloration becomes significantly bolder when wet, showcasing a vibrant red color that provides a visually striking contrast when used with lush green plants in an aquascape. This stone has great stacking potential due to its relatively flat shape, making it an excellent choice for creating river or lake-inspired layouts or a waterfall effect in paludariums and terrariums. Also suitable for any planted enclosures. Stones vary in shape, size, and density. Sold in 5LB, 10LB, 20LB, and 30LB options.
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OtherRed Sea
Red Sea Nutrients Control Pro is a multi-test kit combining nitrate (NO3) and phosphate (PO4) tests for reef aquariums. Its easy colorimetric comparator tracks the two key algae nutrients with high accuracy, with 100 tests for each parameter.
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OtherVivid Creative Aquatics
The Vivid Creative Aquatics Red Sea Reefer Ultimate Return Line Dual 1/2-inch Flex Series RFG Upgrade Kit transforms a Red Sea Reefer return line in seconds, combining 3D-printed reef-safe PETG adapters with genuine Loc-Line parts and two patented Random Flow Generator nozzles. The spiraling 5-fin RFG nozzle design converts laminar return flow into randomized, tank-wide currents; suggested minimum flow 350-400 GPH, optimal 650-750+ GPH. Compatible with Red Sea Reefer and MAX aquariums, CADE Reef series, and 25mm metric pipe.
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OtherVivid Creative Aquatics
Vivid Creative Aquatics' Ultimate XL return line kit combines patented 3/4" Flex Series Random Flow Generator nozzles (reef-safe flexible TPU) with genuine Loc-Line Y fittings and 3D-printed PETG adapters to transform the stock return line on Red Sea Reefer XXL 625+ aquariums (also fits Red Sea MAX, CADE Reef Series, 25mm metric pipe, 1" bulkheads, and other 25–29mm modular hose). The kit installs in seconds with no tools or glue, and performs best with 500–600+ GPH minimum (800–1000+ optimal) through the dual nozzles.
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FilterUltum Nature Systems
The Red Sea Roller Mat Adapter converts the first chamber weir of a UNS R System into a funnel for the Red Sea ReefMat. Built from reef-safe 3D-printed PETG, the R60-90 adapter attaches directly with the included nut and fits the Red Sea ReefMat 250, while the R120-180 adapter uses the included female thread with the ReefMat 500's soft tubing.
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OtherTwo Little Fishies
Two Little Fishies Sea Veggies Red Seaweed sheets are dried Palmaria palmata (red nori-style seaweed) for marine herbivores such as tangs, surgeonfish, angelfish, butterflyfish, and parrotfish. The natural sheets mimic wild grazing foods and are available in a 30g fresh foil pack or 300g bulk pack (no refrigeration required).
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