Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 24 Count 2-lb
Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 24 Count 2-lb








Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 24 Count 2-lb
Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 24 Count 2-lb
Key Benefits
- Maintains calcium & 15 essential trace elements
- Buffered formula keeps water safe & balanced
- Replenishes elements automatically—no dosing
- Perfect for marine tanks with fish & corals
- Easy “drop and forget” use with moderate flow

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Description
Description
Keep your marine aquarium balanced and thriving with a simple, hands-off solution for replenishing vital elements. Designed for larger tanks, Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 24ct 2lbs provides a steady release of calcium, strontium, and all 15 essential trace elements to maintain natural ocean concentrations. This unique formula automatically delivers the exact amounts needed as elements are depleted, eliminating the risk of overdosing or deficiency. Sea-Lab Marine Aquarium Products are trusted by aquarists worldwide for maintaining optimal water chemistry in saltwater environments. For smaller setups, small fish tank filters offer efficient mechanical and biological filtration to keep water clean and fish healthy.
KEY BENEFITS
- Maintains natural ocean levels of calcium, strontium, and 15 trace elements
- Fully buffered formula prevents toxic overload and maintains safe concentrations.
- Automatically replenishes elements as they are depleted, no precise dosing required
- Ideal for large marine tanks with fish, corals, and invertebrates
- Simple “drop and forget” design—place the block where moderate water flow is present
Ingredients & Analysis
Ingredients & Analysis
Ingredients:
A balanced mixture of naturally occurring marine buffer compounds, calcium, strontium, and essential trace elements.
Guaranteed Analysis:(Sea-Lab Concentrations, ppm)
Element | Amount |
Calcium | 400 |
Strontium | 8 |
Boron | 4.6 |
Fluorine | 0.3 |
Iodine | 0.06 |
Iron | 0.01 |
Molybdenum | 0.01 |
Aluminum | 0.01 |
Zinc | 0.014 |
Selenium | 0.004 |
Copper | 0.003 |
Nickel | 0.002 |
Manganese | 0.002 |
Tin | 0.002 |
Vanadium | 0.002 |
Chromium | 0.00005 |
Cobalt | 0.0005 |
Attributes OR Specification
Attributes OR Specification
Automatic replenisher block
Solid block
Maintains calcium, strontium, and trace elements in marine aquariums
Large marine aquariums with fish, corals, and invertebrates
Anywhere with a moderate water current
safety and precautions
safety and precautions
- For marine aquarium use only.
- Keep out of reach of children and pets.
- Avoid placing the block directly on delicate corals or live rock.
- Store unused blocks in a cool, dry location.
Direction
Direction
- Place the block in a location of the aquarium where there is moderate water flow.
- Allow it to dissolve naturally as it releases essential elements into the water.
- When the block is mostly dissolved, simply replace it with a similar amount.
- No need for precise dosing or daily measurements.





