Plant only filtration (why not popular in the hobby???)

thinkrevolutionx

Feeder Fish
MFK Member
Nov 6, 2011
22
1
0
new york
I've been lurking here awhile, and this thread actually made me register just to add my 2 cents.

I'm not the average person that has attempted this. I don't mind water changes (I do 70% bi - weekly on all my tanks) and i'm not under filtered (Most of my tanks have 4-10x overturn an hour) I just want my fish to be super healthy. I'm going to give you my experience.

First and foremost. My tanks never have any nitrate. Ever. Zero. None. One week, two weeks, five months. None. My plants are heavily planted. I will provide photos.

All I do? Golden pothos. Lots of it. Roots sit in the output of the filters, lights are pushed back to hit the leaves. At first the roots really bothered me visually, now it bothers me if they are not there. Quite natural, and the fish love it, and it smooths out the current and diffuses it nicely.

90 Gallon. 9" oscar, 4" blue acara, 5" l202 pleco. Most would say understocked. 0/0/0 readings. Excuse the sparse / scattered nature of the tank. I'm in the midst of redoing it, and I plundered this to redo my other tanks.




This is a closeup of the roots (excuse the reflection) what I have noticed is that these plants, when buried in dirt have very thick roots that are a dark brown in nature. In the aquarium, as you can see - they are very thin, shoot out in all directions, and are very white. I'm unsure the significance, just an observation.



How the plants are setup on the top of the tank. Notice the rich healthy growth.



Next up, 29 gallon betta tank. 9 bettas, 2 otos. Understocked for a certainty. 0/0/0 Notice something here though; the roots are not nearly as developed, neither is the top growth. What does this tell me? Between the other plants and the low waste output of the tank, there isn't as much for the plant to soak up - compared to the very dirty oscar, who has the richest plant growth. the plant is living and the tank has perfect readings. works for me. Once again just an observation.



And finally, my 75 gallon growout tank. This tank is most definitely overstocked, although most of the following are juvi's. 3x blue phantom pleco, 1x golden bristlenose, 1x firemouth, 2x angel fish, 8x roseline shark, 8x clown loach, 1x blue acara , 1x green severum, 1x EBJD. This tank is also the most heavily planted. 0/0/0. always. Another observation; once I added the pythos, my other plant growth suffered. This, combined with 0/0/0 and root growth that is better then the betta tank, but not quite the oscar tank (which is not as heavily planted) tells me these plants are competing for LIMITED resource (ammonia, nitrate) otherwise plant growth would continue unchecked (if these wastes were still present in system)





to sum it up:
- Plants can , in significant quantity completely neutralize all ammonia / nitrate / nitrite in a system.
- Greater amounts of these wastes will result in greater plant growth. Just anecdotal evidence that they are doing what they are supposed to. Absorbing bad things.
- Root and leave growth indicates the plants will greedily absorb and grow to fit whatever you can throw at them. Like establishing a bacteria colony, you can't expect a stem to absorb an oscars waste - however, given enough time, light, and space golden pothos (what I used) WILL reach an equilibrium.
- Roots develop different when submerged. I am not a botanist so I don't know the significance, but when planted the roots are tangled and thick and dark in nature. When submerged they branch like lightning in all directions, are very light in nature, and considerably thinner
- These plants do such a good job that they can and will compete with other plants for nutrients. I noticed a considerable slowing of other plant growth after pothos was added.




Sorry for the essay, I hope my contribution helps.
 
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thinkrevolutionx

Feeder Fish
MFK Member
Nov 6, 2011
22
1
0
new york
For some reason I am not allowed to edit my posts. I want to say that this is about 6-7 months of growth. I did not always have 0 readings. Eventually it reached a balance. I also want to reinforce that I have overkill filtration as well, as if the plants fall behind, it gives them time to catch up as the natural cycle takes place. I don't want people thinking they can just plop plants in and wipe their hands of things. I still advocate water changes and do them myself, for a number of reasons - however for overall fish health (and even personal health since supposedly golden pothos is one of the healthiest plants for air quality) I heartily recommend it. Just be aware you'll have those roots hanging out.
 

JK47

Retired MFK Admin
MFK Member
Aug 4, 2008
11,112
3,479
2,555
Washington
jk how is ur tank coming along 26 pages later
26 pages! Wow I only see 7 since I have my setting set to show 40/page. Well my tank is still running great, no measurable readings of any kind other than pH and I test often. I do water changes every third week. I wil say though I have had a terrible time battling B/G algae.. I am about to chem dose to kill it off but haven't wanted to not knowing the impact it may have on the plants. I have had to cut back the peace lilly's no less than 10 times and had to pull out the 3D BG. Those roots are unstoppable.. In Dec I am moving the stock to my office in a 36" ADA tank. I need to start thinking through what plants I want running it since I don't want the peace lilly's (too big/visual for an office)
 

anarekist

Jack Dempsey
MFK Member
Apr 4, 2011
2,177
9
38
Los Angeles
wow, this thread. my tank is in the garage so lighting would be a problem, but im already formulating some ideas :)
 

ITHURTZ

Piranha
MFK Member
Apr 11, 2007
1,843
33
81
Antioch IL
Why would lighting be a problem? I run a dual bulb 48" shop light. You could get creative and run spiral bulbs. You could go nuts and put a skylight in the roof and put a reflective enclosure around it going to the tank. All depends what you want to grow. I bet arrowheads and pothos will do MORE than fine with 1 t12/t8/t5 bulb. On my snappers tank I have 1 13w flood spiral bulb. Ill post pic of that in a bit
 

ITHURTZ

Piranha
MFK Member
Apr 11, 2007
1,843
33
81
Antioch IL
The snappers tank, with if stretched out about 7' of pothos. 1 13watt spiral flood bulb seen on the right. The pothos love it, seems just the right amount of light. The snappers shell is a little bit bigger than my hand ( Im 6' 2") so he isnt small



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ITHURTZ

Piranha
MFK Member
Apr 11, 2007
1,843
33
81
Antioch IL
WOOOO my hosta has 2 new leaves! Its about time.. And the grass seems to be doing ok haha, standing up towards the light. Man o man would I love to mow my fishtank LAWN!
 

ITHURTZ

Piranha
MFK Member
Apr 11, 2007
1,843
33
81
Antioch IL
The grass it grows it grows! This is probably the one plant that excites me most. GRASS!!!!

4days ago when I put it in


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Now 11/13 there IS a difference!


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ITHURTZ

Piranha
MFK Member
Apr 11, 2007
1,843
33
81
Antioch IL
I have a problem, I added more grass:( Im lucky I am running out of room or id have a entire field put in.



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Top view of my arrowheads


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My girlfriend called me a nerd, and was laughin at me outside while I was collecting grass and said I had problems and that I need a new hobby. I said fine Ill start doing heroin. She said good luck seeing ur kid HAHA. She is funny
 
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