Blocks allow for slow dissolving for use as the aquarium or pond water needs it.
Algae Block helps clear cloudy water and remove algae from ornamental aquariums, ponds, or fountain water
Not recommended for use with live plants. EPA registered.
One block treats up to 100-250 gallons. Can be broken for smaller application.
1/2 dose for initial dose.
Redose full dose when block is almost dissolved and after at least a 20% water change. Usually in 30 days. Make sure there's water movement at the top of the tank with normal temps.
Ingredients: Copper Sulfate Pentahydrate; Diuron [3-(3;4-dichlorophenyl)-1; 1-dimethylurea]; Other Ingredients; Metallic Copper Equivalent
Warning:
Certain water conditions including low pH (..6.5) low dissolved organic carbon (DOC) levels (3.0 mg/L or lower) and soft waters (i.e.. alkalinity less than 50 mg/L) increases the potential acute toxicity to non-target aquatic organisms.
Algae Block helps clear cloudy water and remove algae from ornamental aquariums, ponds, or fountain water
Not recommended for use with live plants. EPA registered.
One block treats up to 100-250 gallons. Can be broken for smaller application.
1/2 dose for initial dose.
Redose full dose when block is almost dissolved and after at least a 20% water change. Usually in 30 days. Make sure there's water movement at the top of the tank with normal temps.
Ingredients: Copper Sulfate Pentahydrate; Diuron [3-(3;4-dichlorophenyl)-1; 1-dimethylurea]; Other Ingredients; Metallic Copper Equivalent
Warning:
Certain water conditions including low pH (..6.5) low dissolved organic carbon (DOC) levels (3.0 mg/L or lower) and soft waters (i.e.. alkalinity less than 50 mg/L) increases the potential acute toxicity to non-target aquatic organisms.