Tropical Fish Keeping - Aquarium fish care and resources

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-   -   hi guy do plants need water movement or fish to be with them? (http://www.tropicalfishkeeping.com/beginner-planted-aquarium/hi-guy-do-plants-need-water-74817/)

leogtr 07-10-2011 07:48 PM

hi guy do plants need water movement or fish to be with them?
 
I have 2 ten gallon plant-only aquariums and I was wondering if I needed the filters that I have working with each. Do they need the water to circulate? or can I just leave them with the lights and no filters? do the plants need fish in there with them or is it okay for the plants to be by themselves?

thank you for your help!

Byron 07-11-2011 10:58 AM

Quote:

Originally Posted by leogtr (Post 730368)
I have 2 ten gallon plant-only aquariums and I was wondering if I needed the filters that I have working with each. Do they need the water to circulate? or can I just leave them with the lights and no filters? do the plants need fish in there with them or is it okay for the plants to be by themselves?

thank you for your help!

Filters are useful to circulate the water, and this serves a couple of functions. It distributes heat around the tank [though without fish this is not that important], it keeps the water clear by removing suspended particulate matter which could otherwise settle on the plant leaves, and it brings the nutrients in the water to the plant leaves and roots. So ideally, I would have a sponge filter in a 10g plant-only tank. But having said this, I doubt you will have problems without a filter. I had a 10g running for a few months without a filter, it had plants and fish and snails, but I was not happy with the look of it so I added a small sponge filter and the water clarity improved [plants "clean" the water, but the filter "clears" it, two different things]. So, you can go either way.

Fish will add nutrients to a tank, namely CO2, ammonia/ammonium, plus their waste. The latter can be somewhat handled with a liquid fertilizer, but ammonium and CO2 will not. However, there is still the bacteria in the substrate, and if there are any organics down there, which there likely will be, some ammonium and CO2 will result from the bacterial processes decomposing the organics.

I have kept plants in fish-less tanks for months. There were lots of snails in the tank, this helps. I noticed the plants remained alive, but did not grow anywhere as fast as they will with fish. So yes, plants will live in fish-less tanks but grow slower.

Byron.

leogtr 07-11-2011 11:53 AM

Quote:

Originally Posted by Byron (Post 731237)
Filters are useful to circulate the water, and this serves a couple of functions. It distributes heat around the tank [though without fish this is not that important], it keeps the water clear by removing suspended particulate matter which could otherwise settle on the plant leaves, and it brings the nutrients in the water to the plant leaves and roots. So ideally, I would have a sponge filter in a 10g plant-only tank. But having said this, I doubt you will have problems without a filter. I had a 10g running for a few months without a filter, it had plants and fish and snails, but I was not happy with the look of it so I added a small sponge filter and the water clarity improved [plants "clean" the water, but the filter "clears" it, two different things]. So, you can go either way.

Fish will add nutrients to a tank, namely CO2, ammonia/ammonium, plus their waste. The latter can be somewhat handled with a liquid fertilizer, but ammonium and CO2 will not. However, there is still the bacteria in the substrate, and if there are any organics down there, which there likely will be, some ammonium and CO2 will result from the bacterial processes decomposing the organics.

I have kept plants in fish-less tanks for months. There were lots of snails in the tank, this helps. I noticed the plants remained alive, but did not grow anywhere as fast as they will with fish. So yes, plants will live in fish-less tanks but grow slower.

Byron.

oh okay thank you very much Byron! I have the flourite substrate on them does that change the growing rate a bit? what about adding food as if there were fish in?

thank you very much for your help.

Byron 07-11-2011 12:46 PM

Quote:

Originally Posted by leogtr (Post 731293)
oh okay thank you very much Byron! I have the flourite substrate on them does that change the growing rate a bit? what about adding food as if there were fish in?

thank you very much for your help.

I would not add additional liquid fertilization with no fish in the tank, nor would I add fish food. You might be surprised at how many organics will exist in this sort of tank without fish present. The CO2 as i said will occur from bacteria in the substrate, but it will be limited. And ammonium also. The nutrients in the Flourite should be adequate in such circumstances. Be careful with light, too much will easily over-balance and algae will be uncontrollable. I would have snails though, esp Malaysian Livebearing if you can get them. Their benefits here cannot be understated.

leogtr 07-11-2011 02:30 PM

Quote:

Originally Posted by Byron (Post 731364)
I would not add additional liquid fertilization with no fish in the tank, nor would I add fish food. You might be surprised at how many organics will exist in this sort of tank without fish present. The CO2 as i said will occur from bacteria in the substrate, but it will be limited. And ammonium also. The nutrients in the Flourite should be adequate in such circumstances. Be careful with light, too much will easily over-balance and algae will be uncontrollable. I would have snails though, esp Malaysian Livebearing if you can get them. Their benefits here cannot be understated.

sounds great I'll add many snails to the tanks! thanks again Byron!


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