Finding the best reef crystals suitable for your needs isnt easy. With hundreds of choices can distract you. Knowing whats bad and whats good can be something of a minefield. In this article, weve done the hard work for you.
Reviews
1. Instant Ocean Reef Crystals Reef Salt for Reef Aquariums
Feature
Feature extra calcium to promote growth of large and small polyp stony corals and coralline algaeExtra trace elements ensure vigorous growth
Metal detoxifier neutralizes traces of heavy metal often found in domestic water supplies
Makes 200 Gallons
Description
Instant ocean reef crystals are easy-to-use and provide all of the necessary elements required for a healthy coral environment. extra calcium, trace elements and vitamins promote growth and support the health of a variety of corals; including stony corals, coralline algae, anemones and other invertebrates. built-in metal detoxifier goes a step farther to neutralize traces of heavy metals often found in domestic water supplies.2. Ade Advanced Optics Dual Scale 1.0 to 1.070 S.G. Salinity Refractometer for Aquarium & Seawater
Feature
Ade Advanced Optics-Dual range refractometer. Ranges: 0-100 ppt of Salinity and 1.000 to 1.070 Specific GravitySturdy design, compact in size and light in weight, convenient to keep up and carry around.
Features ATC (Automatic Temperature Compensation) for accurate readings.
Easy to calibrate and has adjustable manual focusing.
The refractometer is made from aircraft aluminum and offers you the ability to easily take your readings.
Description
Ade Advanced Optics SSA0010 dual scale salinity refractometer is used to measure, monitor and control the concentration of salt water and brine, especially useful for aquarium and marine applications. This high quality refractometer measures on 2 scales, Specific Gravity (D 20/20) and parts per thousand and replaces your poor quality and difficult to read hydrometer. With just a couple of drops of aquarium water you know exactly what your salinity is.3. Professional Automatic Temperature Compensation Sea Water Salinity Refractometer for Aquarium, Hydrometer, 0-100ppt & 1.000-1.070 Salinity Specific Gravity
Feature
Hard Case unitResale Quality - 50% heavier than the soft case cheap units
5 year warranty
Dual Salinity Scale - 0-100ppt & 1.000-1070 Salinity SG
Local stock for fast shipment
Description
Brand new Salinity Refractometer that is used to measure the salinity levels of saltwater aquariums and the worlds oceans. Calibrate with either distilled water or a 35ppt Salinity standard. Wipe off the saltwater after each use. This unit comes with Automatic Temperature Compensation or "ATC". This feature allows you to get a reading outdoors when the temp is between 50'F-86" (10'C-30'C). If you test outside of temp range your readings will become gradually more and more inaccurate. For best results, test indoors. No batteries necessary as you only need strong light - daylight (sunny or cloudy) or a lamp/flashlight.4. Handmade Glass Black Tip Reef Shark - 8" Long - FREE Shipping to the lower 48 on orders over $35!