TDS 1382 CALIBRATION/BOX OF 25 SACHETS TDS 1382 Calibration/Box of 25 Sachets (CAL-5)MILWAUKEE WATERPROOF PENS The Milwaukee Waterproof Pen series of EC, TDS (PPM) and pH pens allow you to monitor your nutrient solution for best plant growth. They all feature replaceable electrodes for long life. The batteries will last 1500 hours of use. The pH pen will measure from 0 to 14.0 pH. The EC and TDS pens have automatic tem... — Ships from Perris, California; Cranston, Rhode Island; Portland, Oregon; Aurora, Colorado; Dallas, Texas USA...more.
24-7 PPM Replacement Probe 24-7 Nutrient Monitor24-7 PPM Replacement Probe (716579)A great all around meter for nutrient applications needing constant monitoring. It measures PPM, pH and Temperature. Its large illuminated green LCD display allows easy reading from a distance. Both pH and PPM are temperature compensated for accurate readings. The electrodes are replaceable at a relatively low price. Calibrati... ...more.
Accurate pH 5 This rugged fixed electrode pH meter fits nicely in the hand and has upgraded electronics for fast and stable readings even when near electromagnetic fields. The 2 point (pH 4 and pH 7) calibration screws are located on the back and in the battery compartment. The meter has an auto OFF function and power saver circuitry for reliable readings time after time. It uses four 1.5 volt b... Note: Calibration Buffer Solutions are available separately. — Ships via UPS from Portland, Oregon USA...more.
Accurate pH 9 This continuous pH monitor is rugged in design and function. The meter displays both pH and temperature and is unaffected by electromagnetic fields from pumps located in reservoirs. It has a tested back lit LCD display and that is bright enough to easily see but not strong enough to cause problems with flowering plants. It has both, a temperature and pH electrode for superior accur... Note: Calibration Buffer Solutions are available separately. — Ships via UPS from Portland, Oregon USA...more.
Accurate PPM 5 This is the match to the Accurate pH 5.0. It has a fixed electrode and fits the hand well. Upgraded electronics allow the meter to be used near electromagnetic fields with little if any interference. It displays a stable and accurate reading time after time with power saver circuitry and an auto OFF function. A one point calibration screw is located on the back of the meter and use... — Ships via UPS from Portland, Oregon USA...more.
Accurate PPM 9 This continuous PPM monitor is rugged in design and function. The meter displays both PPM and temperature and is unaffected by electromagnetic fields from pumps located in reservoirs. It has a tested back lit LCD display and that is bright enough to easily see but not strong enough to cause problems with flowering plants. It has both, a temperature and PPM electrode for superior ac... — Ships via UPS from Portland, Oregon USA...more.
AMMONIA ALERT Seachem Ammonia Alert™
1 YEAR MONITOR
Ammonia Alert™ is an innovative color device for continuously detecting and monitoring toxic free ammonia. A sensor changes reversibly from yellow to green to blue, relative to the ammonia concentration. No test kits, chemicals, or procedures are needed. The device detects less than 0.05 mg/L (ppm) free ammonia and alerts you to the #1 ki... — FREE shipping when ordering $75 or more of qualifying items....more.
AQUA TEST CA- CALCIUM TEST KIT 12/CS Elos Ca - Test Kit
Calcium is the primary building block of corals, clams, calcareous algae and many other organism that we grow in our aquarium. Without adequate supplies of calcium these organism will not flourish and will eventually waste away and die.
The ideal value of Calcium in the aquarium is:
For the marine aquarium 450 mg/L.
For the planted freshwater aqua... This item is sold individually....more.
AQUA TEST MG-MAGNESIUM TEST KIT 12/CS Elos Mg - Test Kit
Magnesium (Mg) is present in a high quantity (1.300/1.350 ppm) in natural seawater. Contrary to its (not only quantitative) significance, this element was ignored as an important parameter of the marine aquarium for a long time.
In contrast of what we know today, Magnesium creates a remarkable improvement in the growth of calcareous algae and also has a posit... This item is sold individually....more.
AQUA TEST NH4 AMMONIA TEST KIT 12/CS Elos NH4 - Test Kit
Ammonia is the most lethal form of inorganic nitrogen produced in aquarium water. The major source of ammonia in a well run aquarium, is from solid waste of fish and invertebrates, uneaten food, decaiyng leaves of plants. Nature comes to our rescue as there are specialized bacteria (Nitrosomonas species) that “eat” ammonia, and strip away the hydrogen atoms. By... This item is sold individually....more.
AQUA TEST NO2 NITRITE TEST KIT 12/CS Elos No2 - Test Kit
The activity of the bio-filter in the aquarium system can be divided in mineralization and nitrification. The products of the mineralization process are ammonia and organic acids. The next step of decomposition is the oxidation (nitrification) of ammonia and ammonium to Nitrate (NO2). Nitrate has a toxic effect on fish because it oxidizes hemo... This item is sold individually....more.