Good hydroponic/filter houseplants? - The Planted Tank Forum
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post #1 of 7 (permalink) Old 09-20-2019, 08:06 PM Thread Starter
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Question Good hydroponic/filter houseplants?

Hi everyone! I am setting up an elaborate filtration system in my new fry tank for the next time I breed fish. The filter will be based around a corner hamburg matten filter, with a 40 GPH pump pulling water through the filter (I can reduce the flow if that is excessive); the pump will then pump the water into a pot filled with hydroponics media, which the water will flow through to get to a drainage hole to get back into the tank. My idea is that not only will this give an ENORMOUS amount of room for beneficial bacteria, but the pot will have a houseplant that will eat much of the resulting nitrates (aquarium plants STRONGLY prefer ammonia, so in the conditions of a fry tank with abundant nutrients competition between the two shouldn't be a major issue).

My question is, what are some houseplants that would do well in such a setup? For perspective, the plant would be about 6 feet from my south window and thus would get low light (though I could add a daylight bulb to give it more light if that would help) and I can give the tank some fertilizer to account for the nutrients not provided by excess fish food or the fry's waste. Thanks
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post #2 of 7 (permalink) Old 09-20-2019, 09:30 PM
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Pothos is great choice.
Any Garden shop should have inexpensives Pothos plants of different varieties.
Just put cuttings into the filter and the plants should do fine with indirect lighting.
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post #3 of 7 (permalink) Old 09-27-2019, 09:34 PM
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I made a hanging basket with some egg-crate that goes into my aquarium.

I have different pothos, dracaena, and strawberry plants growing directly into the water.
I got them in terrible shape, but they're growing firm and green now.

I also have a sweet potato that rooting into the water, it's sprouting greens.
I think it's doing ok, but I've never grown a sweet potato so I can't say for sure. It's not rotting at least.

I had a peace lily growing in the water as well, it grew so much, but I've since moved it into a vivarium.

I've heard herbs like basil, lavender, and mint also grow good in hydroponics systems. I'm growing some spearmint from seeds to try this out myself.

Last edited by Saurapod; 09-27-2019 at 09:36 PM. Reason: Formatting
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post #4 of 7 (permalink) Old 09-27-2019, 10:25 PM
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Golden Creeping Jenny is a great marginal plant for this.



Has a great vining habit as it spills over edge outside tank.

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post #5 of 7 (permalink) Old 10-22-2019, 04:18 AM
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I had an all out war over nitrogen between some hydrocotyle, marselia, and a poor prayer plant bystander. Was literally ripping out big handfuls of hydrocotyle a week, marselia was a jungle. The prayer plant existed.
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post #6 of 7 (permalink) Old 10-22-2019, 05:38 AM
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I second pothos for ease of use and effectiveness. Also, philodendruns, ivy, spider, Aglaonema, Nephthytis and Impatiens. Almost anything will work.
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post #7 of 7 (permalink) Old 10-22-2019, 09:43 AM
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