These Perculas are typically either missing their caudal stripe or have an incomplete center stripe.  Occasionally they may have an incomplete head bar as well. The black pigmentation develops in their mid-section as they mature. Photos...

Enriched formulation. Optimum effectiveness. Formulated specially for use in reef aquariums, Reef Crystals contains essential ocean reef elements in concentrations greater than those found in natural sea water. Extra Calcium to help ensure the...

50 Page Notepad for keeping tracking of your water testing and parameters.  Includes suggested values.

Excellent for Finicky FishFor all Fresh & Saltwater FishSan Francisco Bay Brand Freeze-dried Mysis Shrimp are small bite-sized shrimp that are the perfect food choice for feeding finicky marine fish. Mysis shrimp are a popular food choice for feeding...

FilmTec™ TW30-1812-100HR Elements for water treatment units produce 100 GPD (15.8 L/h) of permeate with 98% stabilized salt rejection at standard test conditions. They are the most reliable and consistent elements in the industry. They are...

UNUSED CUSTOMER RETURNCompatible with A160, A360 & AP700 (TWO Required for AP700) For rimmed and rimless tanks, the new Mounting Arms are fully adjustable, compatible with A160 and A360 series, and offer better cable management. (Part# KSAGN01...

R42317-V3 Bubble Trap Sponge  XXL750V3 / 3XL900 Red Sea Part # R42317-V3

Includes NEW Round Puck LED The Micro Reef-Ready Tank is designed for those who are looking to push the boundaries on their reef-keeping abilities. Perfect for any desktop, countertop, cabinet space, and more. No space is not an excuse for being without...

The Python 20" Extended Length Gravel Tube can be used by itself as a gravel vac or used with a Python No Spill Clean & Fill to replace the 12" Gravel Tube that comes stock with the No Spill Clean & Fill. It includes 28 inches of tubing and a...

Tropic Marin® A- Elements contains a selection of essential anionic trace elements for the promotion of growth and the natural coloring of the corals. Trace elements are natural minerals which are needed by all aquarium inhabitants to maintain...

Aiptasia anemones are one of the most widespread pests in marine aquarium keeping. Usually added to the aquarium unintentionally with live rock or coral, these anemones spread rapidly and damage the coral with their stinging ability. Aiptasia anemones...

Tropic Marin® Original Balling Components are the three salts used in the Balling method to allow an independent dosage of calcium and carbonates adapted to each individual aquarium. The three part method adds calcium chloride dihydrate (part...

New corals often introduce unwanted organisms, parasites and/or impurities into the aquarium, which can endanger the old coral population. Tropic Marin® Coral Clean reliably removes the most common epiphytes, parasites and impurities in an...

Tropic Marin® K+ Elements contains a selection of essential cationic trace elements for the promotion of growth and the natural coloring of the corals. Trace elements are natural minerals which are needed by all aquarium inhabitants to...

For treating aquarium water between water changes. Tropic Marin® Reef Actif is made up of a mixture of natural organic substances of predominantly marine origin. The biopolymers in Tropic Marin® Reef Actif bind excess nutrients...

The high level of biological activity prevalent in intact coral reefs means that high concentrations of biopolymer substances can be found there. Contact with nutrient particles and colonisation with specific bacteria lead to the formation of particles...

As the name mentions, the Coral Cover LED fixture is designed to provide complete light coverage for your aquarium when used in conjunction with your favorite LED fixture. The open middle design allows you to easily mount an EcoTech Radion, AI Prime,...

As the name mentions, the Coral Cover LED fixture is designed to provide complete light coverage for your aquarium when used in conjunction with your favorite LED fixture. The open middle design allows you to easily mount an EcoTech Radion, AI Prime,...

As the name mentions, the Coral Cover LED fixture is designed to provide complete light coverage for your aquarium when used in conjunction with your favorite LED fixture. The open middle design allows you to easily mount an EcoTech Radion, AI Prime,...

PERFECT AQUARIUM CLEANER FOR SMALL FISH TANKS! Flipper Aquarium Products' Signature 2-in-1 MAGNETIC Scrubber Scraper in a FUN-SIZED design for glass & acrylic tanks up to 1/4" (6MM) thick. Keep your glass or acrylic aquarium fish tank looking as good...

The Ultimate All-Purpose Cleaning Mitt! FL!PPER 2-In-1 unique dual-sided cleaning mitt features a soft, extra absorbent terry cloth on one side and a high-quality microfiber cloth on the other. Clean... FL!P... Polish! The FLIP-MITT's Terry cloth side...

FROM FLIPPER TO FEEDER: Flipper Feeder Feeding Kit turns ANY Flipper aquarium glass cleaner into a versatile feeding station! Scrub, Scrape, Flip & now FEED, all without getting your hands wet! FEED YOUR FISH.. NOT YOUR FILTER! Unique sealed...

FL!PPER's DEEPSEE Spotlight easily attaches to any DeepSee Magnified Viewer and has a precisely focused torch-like beam ideal for spying on all your nocturnal creatures! Rechargeable LED SpotLights for Use with ALL FL!PPER DeepSee MAGNIFIED Viewers...

Sometimes, a hand-held scraper is still the way to get certain areas of your tank clean. With a patent pending design that allows you to use any old credit card, gift card, or even a hotel room key as a scraper blade, you may never have to buy blades...

Highly concentrated refrigerated form of the same copepods (Tigriopus californicus) found in our LIVE Tigger-Pods® .  Now available year-round!  NOTE: The copepods in Tigger-Feast are not alive.  Aquacultured in...

PAC PODS are a Refrigerated Food.  These are not LIVE Copepods.  This is a fish food.  Do not dump the entire container into your aquarium, you will nuke it.   Pac-Pods™ are small, nutrition-packed North Pacific...

PAC PODS are a Refrigerated Food.  These are not LIVE Copepods.  This is a fish food.  Do not dump the entire container into your aquarium, you will nuke it.   Pac-Pods™ are small, nutrition-packed North Pacific...

PAC PODS are a Refrigerated Food.  These are not LIVE Copepods.  This is a fish food.  Do not dump the entire container into your aquarium, you will nuke it.   Pac-Pods™ are small, nutrition-packed North Pacific...

These are small pieces.  Pieces range from 2"-5" in length. Increase the beauty of your aquarium landscape with these unique style stones and rocks to look like miniature rock formations. Customize your reef structure with safe, all-natural...

UNUSED-TESTED-WORKS   Basically take the A150, make it brighter using less power (40 Watt ~ 175 Watt Halide Comp) and make it fully controllable with Kessil's new Spectral Controller. There you have it. Kessil's new A160 offers increased power,...

Replacement syringe & needle kit for the Mastertronic The set includes: 4 Plastic syringes (without needles) 6 Replacement needles

The HYDROS Control X4 PRO Pack includes two Control devices, the Control XP8 and Control X4. Combine these Controls to create a secure and impressive set-up for both saltwater and freshwater aquariums. Connect up to four sensor devices,...

Please note: CONTROL XP8 ONLY - Nothing else is included. Achieve Ultimate Security with the HYDROS Control XP8 Power Strip The HYDROS Control XP8 is an eight 120V AC outlet energy bar and can control eight HYDROS WiFi devices with individual power...

Clarifies aquarium water without the mess The Maxspect Nano-Tech Clear Cube is a tourmaline-based brick that breaks down DOM (dissolved organic matter) in aquarium water by dissolving and dissociating of water as a result, keeping your aquarium water...

The IceCap K3 250HOB Protein Skimmer is a compact hang-on-back protein skimmer ideal for aquariums up to 250 gallons. The traditional style cylinder skimmer body shape reduces turbulence to provide optimal performance and its pump is mounted externally...

The IceCap K3 200HOB Protein Skimmer is a compact hang-on-back protein skimmer ideal for aquariums up to 140 gallons. The traditional style cylinder skimmer body shape reduces turbulence to provide optimal performance and its pump is mounted externally...

Please note: CONTROL X3 ONLY - Nothing else is included. Achieve Ultimate Aquarium Control with the HYDROS Control X3 The HYDROS Control X3 can connect to two sensor devices including temperature sensors, water level sensors, and leak detectors. The...

This starter kit includes all essential equipment needed to monitor and control a healthy aquarium including a Control X3 device, HYDROS App, temperature sensor, pH probe, and more. Set up is quick and easy, making this ideal for both beginner and...

The HYDROS Control X3 Monitor Pack includes all essential equipment needed to monitor a healthy aquarium including the Control X3 aquarium controller, HYDROS App, temperature sensor, pH probe, and point leak sensor. Like all...

Terminates the Hydros Collective