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The most concentrated EPA registered pond algaecide available. Algae Clean Out contains no copper, and is safe for all ornamental fish and plants when used as directed.

The most concentrated EPA registered pond algaecide available. Algae Clean Out contains no copper, and is safe for all ornamental fish and plants when used as directed.

Quickly clear hazy, discolored water, with this safe and easy-to-use liquid clarifier.

Fritz Complete is a concentrated, one-step, full-spectrum water conditioner that detoxifies chlorine, chloramine, ammonia, nitrite and nitrate.

Includes one each of kits for the most commonly measured water parameters: Wide Range pH, Ammonia, Nitrite, and Nitrate. Master Test Kit. Perfect for starting a new system. Includes 4 Essential Test Kits. Accurate in both Fresh and Saltwater.Includes one...

FRITZ LIQUID TEST KIT - CALCIUM TEST KIT - In saltwater aquariums, calcium should remain in the proper ionic balance along with alkalinity (KH) and magnesium (Mg2+). Calcium uptake in reef aquariums can change over time and should be regularly tested to...

FRITZ LIQUID TEST KIT - GH TEST KIT - General hardness (GH) is commonly overlooked in many aquariums, but this parameter plays a very important role in your aquariums overall health. Easy-to-read Instructions. Essential for a Healthy Tank. Accurate in...

FRITZ LIQUID TEST KIT - ALKALINITY TEST KIT - The KH value of your water is important to know, as the carbonate hardness plays a significant role in the water’s pH and the water’s buffering capacity to keep that pH stable. Easy-to-read...

FRITZ LIQUID TEST KIT - PHOSPHATE TEST KIT - Excess nutrients can lead to poor water quality very quickly. If not controlled, phosphate (PO4) can rapidly build up in aquariums from fish waste and uneaten food, decomposing algae and other organic matter,...

FRITZ LIQUID TEST KITS - COPPER TEST KIT - It is crucial to closely monitor copper used in aquariums to ensure the correct dose has been applied, especially in volumes of water that are unknown and with copper-sensitive species. Accurate in both Fresh...

FRITZ LIQUID TEST KITS - NITRATE TEST KIT - While not directly a problem for fish at low levels, excess nitrates can cause stress and other water quality issues. Nitrate is continually produced as fish respire and released waste products move through the...

FRITZ LIQUID TEST KITS - NITRITE TEST KIT - Nitrite is produced continually during the ammonia cycle by nitrifying bacteria in the biological filter. While not as immediately toxic as ammonia, any accumulation of nitrite should still be addressed as soon...