Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 1-kg

Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 1-kg

By Sea Lab

(0)
Front of Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 1-kg
Features of Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 1-kg
Benefits of Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 1-kg
Front of Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 1-kg
Front of Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 1-kg
Features of Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 1-kg
Benefits of Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 1-kg
Front of Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 1-kg

Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 1-kg

Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 1-kg

By Sea Lab

(0)

Key Benefits

  • Maintains ocean levels of calcium and minerals
  • Buffered to prevent toxic element buildup
  • Replenishes elements without manual dosing
  • Ideal for marine tanks with corals and fish
  • Easy drop-in block for continuous balance
Free Shipping Icon

Free Shipping*

On orders over $49

Easy Returns Icon

30-Days Free Returns*

Eligible items only  

View full details
Save 35% On Your First AutoShip
Free Shipping On Orders Over $49
View full details

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 1-kg 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
Show More +

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

Item Type

Automatic replenisher block

Form

Solid block

Weight

1 kg

Use

Maintains calcium, strontium, and trace elements in marine aquariums

Recommended For

Large marine aquariums with fish, corals, and invertebrates

Placement

Anywhere with a moderate water current

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

  • 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.

Recently Viewed

Frequently Asked Questions

How long does one Sea-Lab Block #28 last?+

Do I need to measure calcium or trace element levels while using this product?+

Is this safe for reef tanks with sensitive corals?+

Where should I place the Sea-Lab Marine Aquarium Products Automatic Replenisher Block #28 1-kg in my aquarium?+

Can I use multiple blocks at once?+