Chemistry

This tank is one of our best and most popular portable cylinders. Being a 5 lb CO2 tank, it weighs far less than steel and still has more than enough capacity to get the job done. Perfect to refill with CO2. It’s also a great tank for...

Red Sea Salt contains biologically balanced, elevated levels of the foundation elements (Calcium, Magnesium, Carbonates) necessary for sustainable, accelerated coral growth. Red Sea Salt is ideal for reef aquariums, in particular for LPS...

Red Sea’s Coral Pro Salt contains biologically balanced, elevated levels of the foundation elements (Calcium, Magnesium, Carbonates) necessary for sustainable, accelerated coral growth. Coral Pro Salt is ideal for reef aquariums, in particular for...

We are pleased to announce our NEW HI98319 waterproof salinity and temperature tester! Waterproof and floats! Includes 4x of the Salinity Calibration Fluid Packets. Automatic Calibration – A 35.00 ppt solution is used for calibration and...

Ideal for all pH testing, water purification applications, wastewater regulation, aquaculture, hydroponics, colloidal silver, labs & scientific testing, pools & spas, ecology testing, boilers & cooling towers, water treatment, wine, coffee,...

Instant Ocean® Sea Salt is the most carefully formulated and universally preferred sea salt in the world. The #1 choice of hobbyists, public aquariums, and scientific research facilities, Instant Ocean Sea Salt has set the industry standard for...

PurpleUp™ - uses a unique dual method approach to coralline algae acceleration. This approach is so unique that PurpleUp has been awarded a US patent (US patent No. 7,565,883). It contains ionic calcium; which immediately raises dissolved calcium...

Vibrant Sea Salt by Seachem offers an ideal blend of highly concentrated, fast dissolving salts to benefit all marine, reef and closed reef aquarium systems. This blend is nitrate and phosphate free, safe for all saltwater fish and plants. All essential...

PURE, Trustworthy, & Consistent Ultra-pure, pharmaceutical grade ingredients No yellow tinge Quick solubility Consistent quality Near-natural mineral levels Improves color, growth, and polyp expansion of corals ICP controlled and...

Overview Full-spectrum vitamin supplement formulated to benefit marine fishes, corals and otherinvertebrates, and other marine aquarium inhabitants. Provides a full-complement of vitamins in the same ratios found in the tissues offilter-feeding...

The PINPOINT® pH Monitoris in use by thousands of customers worldwide. This affordable unit remains the only full-time pH monitor with .01 resolution. The PINPOINT® pH Monitor is sold complete with probe and calibration fluids (9 volt battery not...

Tropic Marin® All-For-Reef Powder is an ultra-concentrated mineral blend, with which an easy-to-use, highly concentrated all-round solution for supplying all key minerals and trace elements in newly established and averaged reef aquariums...

"Foundation and trace element supplement for balanced formation of coral skeleton Ca | Mg | KH | Sr| Ba | K | I SKELETAL ELEMENTS is a blend of all of the corals foundation elements of coral skeletons: Calcium, magnesium, strontium & carbonate,...

Foundation Pro Multi test kit High accuracy titration tests for the accurate measurement of theFoundation elements Calcium, Magnesium and Alkalinity (KH) It’s all in the balance Red Sea’s FOUNDATION PRO Multi Test Kit includes high...

Red Sea’s Algae Control Pro Kit includes high accuracy colorimetric comparator tests for the exceptionally high accuracy measurement of nitrate and phosphate. The nitrate & phosphate tests are essential for the accurate dosing of Red...

Easy-to-use tests for the accurate monitoring of all of the important parameters during the biological maturation of marine and reef aquariums NH3/NH4 | NO3 | NO2 | pH | KH Red Sea Marine Care Test Kit is Complete multi-test pack including all of...

Main features of Red Sea’s Seawater Refractometer include:Directly reads the absolutesalinity ofseawaterat25°C/77 0F ( No need for seawater or temperature compensation factors)Specifically designed for the ionic content of seawater (NSW) for...

The HI190M is a compact and lightweight magnetic stirrer. With a small footprint, lack of laboratory bench space is no longer a concern. Built to last with a protective covering and a user-adjustable stirring speed, this small stirrer is great for...

The MC Monitors are designed to continuously monitor pH, EC or TDS values directly in your reservoir. Each unit features a user select able set-point. An LED visual alarm is activated and flashes when the pH, EC or TDS level rises either Above or Below...

Same great benefits from RPM's original formula, PLUS Higher alkalinity for increased SPS growth in higher nutrient systems! Complete Professional Marine Salt Mix for Reef or Fish Only Systems Contains All Essential Major, Minor & Trace...

Live product. Keep refrigerated. Do not freeze. Refrigerated life is 4 months with a temperature Range of 34 - 50 degrees F. Use before expiration date on bottom of bottle. Shipping: Live Foods Ship on Select Days & Have a 100% Arrive Alive...

Live product. Keep refrigerated. Do not freeze. Refrigerated life is 4 months with a temperature Range of 34 - 50 degrees F. Use before expiration date on bottom of bottle. Shipping: Live Foods Ship on Select Days & Have a 100% Arrive Alive...

200 gallon box, contains four individually packed 50 gallon bags. At Two Little Fishies the big picture has always been about Little details. That’s why we’ve made a new synthetic seawater mix like no other. We call it AccuraSea1. AccuraSea1...

Meet the new 4-part Complete Reef Care, providing hobbyists with more convenience at no extra cost, and ensuring optimal coral growth and vivid colors with only one test per week!  Our long-term research has revealed that in most reef systems...

The HI98308 Pure Water tester is a rugged and reliable pocket-sized tester that offers quick and accurate readings. The HI98308 Pure Water tester features graphite electrodes to reduce polarization effects and an exposed temperature probe for fast...

Calcium Hydroxide | "Kalkwasser" Characteristics Provides calcium. Increases pH. Kalkwasser application is an integral part of an effective pH-management and coral growth regimen in dedicated coral culture systems...

Control Green or Brown Water in your Reef, Nano, or Seahorse Aquarium Use Dr.Tim's Re-Fresh in your reef, nano, or seahorse aquarium to control brown or green water issues. Re-Fresh is a potent combination of beneficial bacteria that work together to...

The DiST® 4 features a large multi-level LCD which displays both conductivity and temperature readings simultaneously. The EC readings are displayed with a 0.01 mS/cm resolution and with an accuracy of ±2% full scale. The EC range of the...

PURE, Trustworthy, & Consistent Ultra-pure, pharmaceutical grade ingredients No yellow tinge Quick solubility Consistent quality Near-natural mineral levels Improves color, growth, and polyp expansion of corals ICP controlled and...

Great For Freshwater, Marine or Pond Environments Ultimate is the world’s first full-function water conditioner. Everything you need to maintain a superior environment for your aquatic pets is in one bottle. For new setups ®Ultimate instantly...

Fritz Complete is a concentrated, one- step, full-spectrum water conditioner that detoxifies chlorine, chloramine, ammonia, nitrite and nitrate. Safe to use in fresh and saltwater, including reef and planted aquariums. Use when setting up new aquaria,...

Fully synthetic marine salt created for cultured corals. Its formula is designed to create the best conditions for marine animals. The micronutrients and macronutrients contained in the formula fully fulfill the demand of corals for proper growth and...

Fully synthetic marine salt created for cultured corals. Its formula is designed to create the best conditions for marine animals. The micronutrients and macronutrients contained in the formula fully fulfill the demand of corals for proper growth and...

Instant Ocean® Sea Salt is the most carefully formulated and universally preferred sea salt in the world. The #1 choice of hobbyists, public aquariums, and scientific research facilities, Instant Ocean Sea Salt has set the industry standard for...

Synthetic marine salt for aquariums with fish and less delicate corals and invertebrates. When setting up new aquariums it is recommended that the first animals are placed no sooner than 10-14 days after filling the aquarium. After dissolving the salt,...

Great For Freshwater, Marine or Pond Environments Liquid Buffered ClorAm-X utilizes a patented molecule to destroy chloramine and then removes the ammonia and chlorine. Gone are the days of hoping your biological filtration can remove the bound up...

The Hanna Marine Alkalinity (dKH) Checker® bridges the gap between simple chemical test kits and professional instrumentation. Chemical test kits have limited accuracy and resolution since they rely upon the human eye to discern differences in color...

Spare tester electrode. Compatible with: HI 98129, and HI 98130 Combo multi-parameter testers, HI 98127 and HI 98128 pHep testers, and HI 98121 ORP tester.  

The HI784 Marine Ammonia Checker HC is a handheld colorimeter that uses the Beer-Lambert principle to determine the concentration of ammonia colorimetrically. The HI784 is designed specifically to measure ammonia levels in a saltwater aquarium. The 0.00...

THESE ARE THE NEWLY UPDATED REAGENTS.  Now 1x powder and 1x liquid.  The testing process is the same as Alkalinity HI772 with one second liquid reagent. The HI783 Marine Magnesium Checker HC is a handheld colorimeter that uses the Beer-...