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Growing Plants

How I grow dense, healthy plants in my cherry shrimp aquariums. Brief guide explaining substrate, light, nutrients, and more.

Planted Aquarium
cherry shrimp feeding on spinach

Nutrients

~25 elements are essential for life, shared among all organisms.

Thus, a complete organism is a source of complete nutrients if it can be efficiently stored in its entirety.

Fish food from whole fish is one example of such.

Based on Diana Walstad's book

Cherry shrimp feeding on green pea

How I Provide Nutrients

I feed fish food as the most basic complete source of nutrients. Plants can grow indefinitely off of this.

However, fish food tend to be high in nitrogen and phosphorus which may fuel algae growth in excess.

I experiment with boiled vegetables which may provide a better balance of overall nutrition.

Water reservoir with matured sweet potato vines

Water

Soft or hard water can be used.

Certain plants may have a competitive advantage in certain waters. Below is a list of examples.

Best to bypass any filters, softeners, and avoid bottled water. They may contain minerals in unnatural proportions for plant life.

LED light on planted bin

Light

Modern LED's have enough light output for most aquarium plants.

Some plants prefer to be in the shade, some prefer direct, intense light.

Mix low-light plants with high-light plants for best results.

Sand-only Planted Aquarium

Sand

A deep sand substrate provides the environment for decomposition and nutrient breakdown that will fertilize plant growth.

Complete decomposition may take months to a year. Therefore, plants may not grow much until a few months after aquarium setup.

The use of fertilizer and organic soil may supply these deficiencies, however I have not observed any differences from sand-only tanks.

OPTIONAL:
Mineral Rocks Limestone, dolomite, crushed coral, and more Excessive amounts will make water extremely hard. Use with caution.
Driftwood and botanicals Dried leaves, aldercones, tree branches and more Excessive amounts will soften and acidify the water. Use with caution.
Water Pump/Air Stone Any aquarium pump/air stone Some plants do better with strong water flow and some do not. Use accordingly.
Heater Any aquarium safe heater Temperature should be kept within tropical ranges.
Fast Growing Slow Growing
Hard Water Hygrophila Corymbosa
Java Moss
Jungle Val
Dwarf Sagittaria
Subwassertang
Soft Water Elodea
Any Water Rotala Rotundifolia
Duckweed
Riccia
Java Fern
Anubias
Marimo Moss Ball
Overgrown Java Moss

Co2 Injection

Plants can become carbon constrained, since other nutrients are provided in excess through fish food. I do not inject co2, aerial plants like Hygrophila Corymbosa are able to access atmospheric co2 once they emerge out of the water.

For submerged plants, they will simply grow slower.

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Toronto, Canada

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