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5 Characteristics of the Perfect Substrate | ScapeFu028

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5 Characteristics of the Perfect Substrate | ScapeFu028

What type of substrate should I use in my aquarium?

This is a question we hear all the time. Perhaps you’ve asked it? It’s a good one because the substrate you use in your aquarium has a lot to do with whether you succeed or fail. Depending on the size of your aquarium and your aquascape, it may be one of the more expensive things to buy as well.

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    • 5 Characteristics of the PERFECT substrate

  • Appearance suitable for the aquascape. Does it meet your vision for the aquascape? It’s got to look good to you or everything else doesn’t matter. Remember that you’re trying to tell a story with your aquascape and the substrate must help you do that. Consider the color, size and texture of the granules and what sense of scale it will give the viewer.

  • Any good substrate must properly anchor your roots. It’s got to hold them down well. Use too large of a granual size and your tiny rooted plants will have a tough time staying down. Also, it should won’t turn to mush over time. If you use soil, for example, you’ll end up with a mess. Soil + water = mud…

  • The substrate must be capable of functioning as a nutrient storehouse. What I mean by this is that a good substrate will have/absorb essential nutrients and hold them (out of solution or in solution but only in the substrate) so that plants can take them up. A substrate’s Cataion Exchange Capacity (CEC) is one way to measure how good a substrate is at doing this.

    • The all-knowning Wiki tells us that CEC is the total capacity of a soil to hold exchangeable cations. CEC is an inherent soil characteristic and is difficult to alter significantly. It influences the soil’s ability to hold onto essential nutrients and provides a buffer against soil acidification.

    Another way substrates create a nutrient storehouse is by providing the proper home to bacteria and microorganism that convert nutrients to forms available to plants. They also finish certain cycles such as the nitrogen cycle. They are critical for the long-term success of your aquarium.

     

  • The perfect substrate won’t negatively affect water chemistry. Substrates with limestone/calcium will change the hardness of your water. Pour some muriatic acid (CAREFUL!) on a substrate that you’re unsure of and see if it bubbles, fizzles or melts. Don’t use it if it does.

  • The perfect substrate won’t cloud the water by constantly releasing substances such as tannins.

  • Bonus! The perfect substrate is cheap and easy to obtain. But, should it be cheap?

    • Question: is a combination of substrates (for example, Power Sand + Aquasoil) better than only one substrate (Aquasoil)?

    We’ve done it both ways and either works.

    What are some of the commercial substrates we’ve used?

  • Seachem Flourite

  • CaribSea Eco-Complete

  • Florabase

  • Dennerle

  • Tropica

  • ADA Power Sand and Aqua Soil

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    We’d love to hear from you about today’s topic or anything else. How can we help you?

     

    The easiest way to reach us is via email. Art is at [email protected], JJ is at [email protected] and Jurijs is at [email protected].

     

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