Tropical Fish Keeping - Aquarium fish care and resources

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Jwest 10-02-2012 04:32 PM

Greenhouse
 
I have a crazy idea of starting a very small business growing aquatic plants and selling them online or to local fish stores.
This is the greenhouse I'm looking at.

One Stop Gardens Greenhouse - Great Deals on One Stop Gardens at Harbor Freight

I was thinking I could build grow tanks using just plywood wood and sealing it up with some kind of epoxy like the tanks I've seen built on youtube.


I want to use dirt and play sand as my substrate. I've grown alot of plants successfully this way.

Any thoughts? Ideas?

Byron 10-02-2012 06:06 PM

My thinking on the plywood/glass tanks is that they would inhibit a lot of light.

If you are thinking fully aquatic plants, like Vallisneria, Aponogeton, Cabomba, and similar, which must be grown submersed, glass tanks would be better to get more light at the plants.

Plants like swords, crypts, some stem plants, Java Fern, moss and Anubias to name a few are actually marsh or bog plants that nurseries cultivate emersed in damp soil and not submersed. So normal terrestrial nursery propogation trays would work. The greenhouse would presumably give the humidity. Nurseries use this method because it is less expensive, and much faster. Plants can assimilate CO2 directly from the air (if grown emersed) at four times the rate they can submersed, plus you don't need to be pumping CO2 into the air as you would with water.

Byron.

Jwest 10-02-2012 07:03 PM

I was thinking the same thing about the grow tanks. A better alternative may be to to build the tanks with plywood bottoms and use glass sides for plants that must be submersed.

Do you think something like this would need water circulating constantly or could it be done with stagnant water?

Byron 10-02-2012 08:02 PM

Quote:

Originally Posted by Jwest (Post 1263700)
I was thinking the same thing about the grow tanks. A better alternative may be to to build the tanks with plywood bottoms and use glass sides for plants that must be submersed.

Do you think something like this would need water circulating constantly or could it be done with stagnant water?

A bit of water flow is good. This keeps the leaves cleaner (and plants respire through leaves, and assimilate some nutrients solely via leaf) by moving suspended particulate matter out, and it brings nutrients to the leaves.


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