Salt, Sand, Rocks

Salt, Sand, Rocks

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  • TROPIC MARIN BIO-ACTIF 25 kg / 750 l / 200 Gal. bucket

    $138.00

    How to use:

    To achieve a salinity level of 32-35 ‰ (psu), dissolve 35 ml of Tropic Marin® BIO-ACTIF per liter or approximately ½ cup of Tropic Marin® BIO-ACTIF per US gallon water. Dissolve almost all of the salt in a clean container already filled with the full volume of RO/DI water at a temperature of 73-77 °F / 23-25 °C while circulating/stirring the water. Do not concentrate the mixture by adding the full amount of salt to a smaller amount of water.

    Note: Always add the salt to the water, never the water to the salt.  Making a concentrated mixture will cause a calcium carbonate precipitate to form.

    When you have added ALMOST all of the salt and the mixture is fully dissolved, start measuring the specific gravity with a hydrometer or similar instrument.

    Note: Slight cloudiness is normal at this stage and indicates that the bio-active substances are taking effect.

    Keep adding small amounts of salt until the specific gravity is the value you desire. The specific gravity of the sea salt solution should range from 1.025 to 1.027 (at 73-77 °F / 23-25 °C) and the pH -value should be in the range of 8.0 – 8.4. If all parameters ​​are correct, the salt water is ready to use.

    After setting up a new aquarium it takes a few weeks of water being circulated and correct lighting conditions to achieve the biologically stable environment required for the care and breeding of delicate marine organisms.

    A weekly, partial water change, replacing approx. 10 % of the total water volume with Tropic Marin® BIO-ACTIF, will help to maintain the water quality that your livestock needs for good health.

    Note: The review of the conductivity of freshly prepared BIO-ACTIF seawater will show about 10 % too low results. We recommend measuring the specific gravity with the Tropic Marin® HYDROMETER.

    Parameters: approx. 8° KH, calcium approx. 440 ppm, magnesium approx. 1350 ppm

    Application: For reef tanks with carbon dosing, to create an ultra-low nutrient system and to maintain the alkalinity in a 8-9 °dH range.

    Use the new dosing calculator for an easy determination of the required amount of salt for your aquarium.

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  • ATS Rock – 218012

    $23.00

    Environmental friendly live rock, No impact to the world’s reef!

    – Very realistic shape, color, texture and character.
    – High porosity, perfect use for biofilter.
    – Non toxic, safe for fish and invertebrates
    – 30% lighter in weight then real rock
    – Resizeable, perfect for nano aquarium.
    – Does not affect water pH level.

    31 cm x 15 cm x 11cm

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  • ATS Rock- 218001

    $38.00

    Environmental friendly live rock, No impact to the world’s reef!

    – Very realistic shape, color, texture and character.
    – High porosity, perfect use for biofilter.
    – Non toxic, safe for fish and invertebrates
    – 30% lighter in weight then real rock
    – Resizeable, perfect for nano aquarium.
    – Does not affect water pH level.


    26 cm x 22 cm x 15cm

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  • ATS ROCK- 218002

    $30.00

    Environmental friendly live rock, No impact to the world’s reef!

    – Very realistic shape, color, texture and character.
    – High porosity, perfect use for biofilter.
    – Non toxic, safe for fish and invertebrates
    – 30% lighter in weight then real rock
    – Resizeable, perfect for nano aquarium.
    – Does not affect water pH level.

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  • ATS ROCK- 218003

    $30.00

    Environmental friendly live rock, No impact to the world’s reef!

    – Very realistic shape, color, texture and character.
    – High porosity, perfect use for biofilter.
    – Non toxic, safe for fish and invertebrates
    – 30% lighter in weight then real rock
    – Resizeable, perfect for nano aquarium.
    – Does not affect water pH level.

    25 cm x 15 cm x 16cm

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  • ATS ROCK- 218004

    $28.00

    Product Description

    Environmental friendly live rock, No impact to the world’s reef!

    – Very realistic shape, color, texture and character.
    – High porosity, perfect use for biofilter.
    – Non toxic, safe for fish and invertebrates
    – 30% lighter in weight then real rock
    – Resizeable, perfect for nano aquarium.
    – Does not affect water pH level.

    26 cm x 22 cm x 9cm

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  • ATS ROCK- 218005

    $21.00

    Product Description

    Environmental friendly live rock, No impact to the world’s reef!

    – Very realistic shape, color, texture and character.
    – High porosity, perfect use for biofilter.
    – Non toxic, safe for fish and invertebrates
    – 30% lighter in weight then real rock
    – Resizeable, perfect for nano aquarium.
    – Does not affect water pH level.

    18 cm x 14 cm x 19cm

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  • ATS ROCK- 218006

    $28.00

    Product Description

    Environmental friendly live rock, No impact to the world’s reef!

    – Very realistic shape, color, texture and character.
    – High porosity, perfect use for biofilter.
    – Non toxic, safe for fish and invertebrates
    – 30% lighter in weight then real rock
    – Resizeable, perfect for nano aquarium.
    – Does not affect water pH level.

    18 cm x 14 cm x 19cm

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  • ATS ROCK- 218007

    $28.00

    Product Description

    Environmental friendly live rock, No impact to the world’s reef!

    – Very realistic shape, color, texture and character.
    – High porosity, perfect use for biofilter.
    – Non toxic, safe for fish and invertebrates
    – 30% lighter in weight then real rock
    – Resizeable, perfect for nano aquarium.
    – Does not affect water pH level.

    22 cm x 18 cm x 14cm

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  • ATS ROCK- 218008

    $32.00

    Product Description

    Environmental friendly live rock, No impact to the world’s reef!

    – Very realistic shape, color, texture and character.
    – High porosity, perfect use for biofilter.
    – Non toxic, safe for fish and invertebrates
    – 30% lighter in weight then real rock
    – Resizeable, perfect for nano aquarium.
    – Does not affect water pH level.

    21 cm x 13 cm x 21cm

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  • ATS ROCK- 218009

    $21.00

    Environmental friendly live rock, No impact to the world’s reef!

    – Very realistic shape, color, texture and character.
    – High porosity, perfect use for biofilter.
    – Non toxic, safe for fish and invertebrates
    – 30% lighter in weight then real rock
    – Resizeable, perfect for nano aquarium.
    – Does not affect water pH level.

    22 cm x 15 cm x 14cm

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