Great Aquariums Start Here
1-800-566-3474
Live Chat Support
    Free Shipping On $175+
  • FREE Shipping On $175+
  • 14-Day Low Price Guarantee
  • 14-Day Low Price Guarantee
  • Same Day Shipping
  • Same Day Shipping
FREE Shipping on
Orders Over $175
Standard ground shipping (1-7 business days) starts at a low $5.99 and most orders over $175 ship FREE. Learn More
 
If you find a product we sell for a lower price at another online store, we will match their price—today and up to 14 days after you've purchased the item! Learn More
 
Same Day Shipping
We promise to ship your order as fast as humanly possible. In fact, 99% of orders placed before 6 pm EST ship the same day! Learn More
 
  • Options
    Reset All
  • Your Selections
  • $25-$40
    (Price)
Search Results for »
Show: per page
Grid View Grid List View List
Sort by:
76 - 100 of 405
65W Power Compact Bulb - Straight Pin

65W Power Compact Bulb - Straight Pin

UVL 65W Actinic White PowerCompact Bulb - Straight Pin Bulb Replacement Guide Bulb Types Life of Bulb* Normal Output Fluorescent 6-12 months Very High Out...

From $15.99
Swing Check Valve - FPT x FPT

Swing Check Valve - FPT x FPT

Part #: FT9033 Description: 1/2" Clear FPT Swing Check Valve Size: 1/2" FPT x 1/2" FPT Designed to be used any place where you want to stop backflow and siphoning. These are among the highest quality check val...

From $22.09
D-D Powerchrome Midday T5 High Output Fluorescent Lamp

D-D Powerchrome Midday T5 High Output Fluorescent Lamp

The D-D Midday 6000 T5 bulbs have full a 5 point colour spectrum and 6000K colour temperature which exactly recreates natural sunlight. Suitable for salt water and fresh water. Midday is a 6000 Kelvin tube with a 5 point spectrum...

From $18.99
Gate Valve - FPT X FPT

Gate Valve - FPT X FPT

Gate Valve - 1/2 inch FPT X 1/2 inch FPT **Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this item is eligible for price matching under our Low Pric...

From $18.94
Seachem Reef Fusion Two Part System 1 & 2 Calcium and Carbonate Supplement

Seachem Reef Fusion Two Part System 1 & 2 Calcium and Carbonate Supplement

Reef Fusion 1™ and Reef Fusion 2™ are the foundation of a system formulated to provide the essentials for the reef aquarium. Reef Fusion 1™ provides calcium, while Reef Fusion 2™ provides alkalinity. When used together, the Reef F...

From $14.99
HM Digital Dual Inline TDS Meter

HM Digital Dual Inline TDS Meter

The Dual TDS meter offers an easy and convenient way of monitoring the performance of your RO or RO/DI unit. It allows you to quickly check the quality of the inlet and outlet water and helps you to determine when the cartridges n...

$29.99
ASM replacement Needle Wheel Impellers

ASM replacement Needle Wheel Impellers

Replacement Needle Wheel Impeller for the G-300 used on the ASM Mini-G skimmer

From $20.99
Swing Check Valve - Slip x Slip

Swing Check Valve - Slip x Slip

Part #: FT8933 Description: 1/2" Clear PVC Socketed Swing Check Valve Size: 1/2" Slip x 1/2" Slip Designed to be used any place where you want to stop backflow and siphoning. These are among the highest quality check valves to be...

From $22.09
Kent Marine Strontium & Molybdenum

Kent Marine Strontium & Molybdenum

Description: Strontium & Molybdenum Supplement provides bio-available strontium for lush growth of purple, pink and green calcareous algaes, snails, hard tube worms and clams. Magnesium is added to make up for deficiencies i...

From $7.64
Brightwell Aquatics Reef Biofuel Liquid

Brightwell Aquatics Reef Biofuel Liquid

Overview Helps maintain a balanced nutrient-limited marine aquarium by enabling the hobbyist to enhance the rate of microbial growth and reproduction, increasing the rate of phosphate-reduction and denitrification; this is o...

From $14.69
CaribSea Dry Aragonite Special Grade Reef Sand

CaribSea Dry Aragonite Special Grade Reef Sand

1.25–1.95 mm diameter grain size. A revolution in reef-keeping! This is the one you’ve been reading about in all the hobbyist publications. This grade of aragonite is specifically engineered for plenum-type nitrate reducing beds o...

From $26.49
H2O Life Seaweed

H2O Life Seaweed

High in protein and enriched with Vitamins A, B1, B2, B6 and K. This is the most popular type of seaweed because of it`s natural green color and it`s ability to hold together for extended periods of time in the aquarium water. Th...

From $5.49
Kent Marine Essential Elements

Kent Marine Essential Elements

Description: Kent Marine Essential Elements replaces biologically important trace minerals which are removed by marine fish and invertebrates, and removed through protein skimming, ozone, and especially carbon filtration. Design...

From $6.99
Ruby Reef Kick-Ich

Ruby Reef Kick-Ich

Reef Safe Kick-Ich is a water treatment for the control of ich (a.k.a. "whitespot disease") in marine and freshwater aquaria. It has been scientifically formulated to eliminate the free swimming, infectious stage of the ich life c...

From $23.99
Mr. Aqua Bookshelf / Long Frameless Glass Aquarium Tank

Mr. Aqua Bookshelf / Long Frameless Glass Aquarium Tank

Mr. Aqua aquariums are produced using high clarity glass. By eliminating the plastic frame that surrounds typical aquarium systems, the Mr. Aqua aquarium provides a clean and clear view of your aquatic life. Normally the plasti...

From $32.99
SpectraPure® SilicaBuster DI Cartridge - Non-Indicating - SuperDI (DI-SB-10HC)

SpectraPure® SilicaBuster DI Cartridge - Non-Indicating - SuperDI (DI-SB-10HC)

SpectraPure® SilicaBuster™ Super DI™ Multi-Layer De-Ionization Cartridges are fabricated with the highest grade custom-blended resins for ultra-pure water. They are capable of producing 18 meg ohm-cm resistivity water. They are th...

$29.99
24V 60 Watt Transformer for Current USA TrueLumen Pro LED StripLights

24V 60 Watt Transformer for Current USA TrueLumen Pro LED StripLights

TrueLumen PRO Striplights 24 volt 60 watt LED Transformer

$49.99 $31.49
True Union Swing Check Valve - FPT x FPT

True Union Swing Check Valve - FPT x FPT

True Union Swing Check Valve - 3/4 inch FPT x 3/4 inch FPT **Variations of this product can be found in many online stores. The version we carry is of the highest quality. Although this item is eligible for price matching ...

From $24.20
Two Little Fishies C-Balance

Two Little Fishies C-Balance

TwoLittleFishies C-Balance 32 oz., a two-part liquid supplement designed to make replenishment of calcium and buffering capacity easy. C-Balance replenishes calcium and carbonate alkalinity with the correct ratio of both major and...

From $18.49
Innovative Marine 3 Stage Filter Media Pack for Micro 30/30L, Mini 38/40 - Combo Pack

Innovative Marine 3 Stage Filter Media Pack for Micro 30/30L, Mini 38/40 - Combo Pack

3-IN-1 COMBO Keeping your aquarium clean has never been simpler. We’ve combined 3 of the best filter media sponges to trap free floating particulate matter, remove pollutants that cause odor and discoloration, and combat phospha...

From $15.00
IceCap Variable Speed Smart Fan

IceCap Variable Speed Smart Fan

Equipped with a thermistor these high quality fans regulate their speed based on an increase or decrease in the temperature surrounding the probe. Excellent for Aquarium Canopies, enclosed stands and equipment cabinets. CoralVu...

From $32.95
AquaticLife 48 Inch 54W T5HO Bulb

AquaticLife 48 Inch 54W T5HO Bulb

AquaticLife T5 HO Lamp 420/460nm Dual Actinic Visible Hue: ACTINIC/BLUE Kelvin: 420/460nm Length (including pins): 45 3/4” Application: Freshwater, Marine Fish & Corals Ideal for: Acroporas (SPS), Anemones, Clams, Hard Cor...

From $17.99
Kent Marine PhytoPlex Phytoplankton

Kent Marine PhytoPlex Phytoplankton

Description: Kent Phytoplex is a highly concentrated complex of aqua cultured, naturally occurring marine phytoplankton It contains Nannochloropsis, Tetraselmis and Isochrysis sp. Tahitian ranging in size from 2 to 15 micr...

From $7.49
Giesemann Actinic Blue T5HO Fluorescent Bulb

Giesemann Actinic Blue T5HO Fluorescent Bulb

Since most aquarium inhabitants live in seawater depths where the light is very blue, it is needed to simulate this natural living conditions in the aquarium. The Giesemann Actinic Blue has therefore been developed to enhance the ...

From $18.95
SpectraPure® SilicaBuster DI Cartridge - Color-Indicating - SuperDI (DI-SB-CI-10HC)

SpectraPure® SilicaBuster DI Cartridge - Color-Indicating - SuperDI (DI-SB-CI-10HC)

SpectraPure® SilicaBuster™ Super DI™ Multi-Layer De-Ionization Cartridges are fabricated with the highest grade custom-blended resins for ultra-pure water. They are capable of producing 18 meg ohm-cm resistivity water. They are th...

$29.99
76 - 100 of 405
This item is temporarily unavailable but will be back in stock soon.

Item #
Price:
Click the Add To Cart button below if you'd like to reserve this item today. Any other items included in your order will be immediately processed and shipped. We will ship this item separately as soon as it arrives. We will not charge you for this item until it ships and you will incur no additional shipping charges.

Enter your email address in the field below and click the Notify Me button if you'd like us to send you an email when this item becomes available. Although you will be immediately notified when we have stock on hand, we will not reserve any units for you; you must return to our website and place an order.

Your Email:
Just enter your email address below and we'll let you
know when the product you are looking for becomes available!

Item Code:
Price:
Your Email:
WIN A $195 RO/DI SYSTEM! Sign up for our best deals, expert tips and a chance to win a RO Junior w/ Dual DI System!