40B Nature Scape - The Planted Tank Forum
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post #1 of 35 (permalink) Old 10-26-2019, 05:40 PM Thread Starter
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40B Nature Scape

Been out of the game for a while but I’ve been itching to get back into it and I’ve now got my 40B well on its way. I’ve grown very fond of the nature style tanks and I have been collecting materials for a while now. I’ve always wanted to do a sump so I decided to drill my tank and hooked up the Eshoppes Eclipse Bean Animal. It’s certainly overkill for my size tank, but an overflow to me provides a clean look. I had an old AGA tank stand that I had initially coated with spar urethane but I have since stripped, sanded, and painted it white with topside paint. I also added new bronze hinges and knobs to the front of the doors. I have collected several pieces of spiderwood for my hardscape, and managed to get some great rock locally from an outdoor hardscape center for $20 and I still have plenty left over. I’m trying for a triangular layout and this is what I have created thus far. I think I did a good job for my first go round but let me know what you guys think. The plan is to utilize either a complimenting gravel or sand in the front and the entire rear of the scape will be filled with aquatic soil. I will use plenty of buce and anubias for the cracks in the rock work and the branches of the spider wood. I also plan to use some java fern and bolbitis in the center of the spider wood. For the background, a mix of stem plants that will gradually slope to the right to give the triangular effect. I’ll continue to update my progress, as I need some more items to get the tank running. CO2 injection and the Twinstar 900S is my plan. I also mocked up my own internal Venturi from Tom’s design. Appreciate any feedback
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post #2 of 35 (permalink) Old 10-28-2019, 07:43 PM
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Really like the hardscape! Good luck!
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post #3 of 35 (permalink) Old 10-28-2019, 11:12 PM Thread Starter
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Really like the hardscape! Good luck!
thanks! I was worried about the rocks because It’s not easy to find common aquascape rock so I decided to give landscape river rock a try and it looks great with the spiderwood!
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post #4 of 35 (permalink) Old 10-29-2019, 02:49 AM
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I'd be very leery of that rock and how its going effect hardness/PH in tank. Looks like limestone so probably will leach large amounts of Ca and Mg into water.
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post #5 of 35 (permalink) Old 10-29-2019, 03:17 AM Thread Starter
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I'd be very leery of that rock and how its going effect hardness/PH in tank. Looks like limestone so probably will leach large amounts of Ca and Mg into water.
oh gosh don’t tell me that lol I’ve already tested all the pieces with acid and none of them fizzed.
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post #6 of 35 (permalink) Old 10-29-2019, 05:55 AM
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oh gosh donít tell me that lol Iíve already tested all the pieces with acid and none of them fizzed.
OK, if you've tested it. Is possible that is a quartz based sandstone.
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post #7 of 35 (permalink) Old 10-29-2019, 11:48 AM Thread Starter
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oh gosh don’t tell me that lol I’ve already tested all the pieces with acid and none of them fizzed.
OK, if you've tested it. Is possible that is a quartz based sandstone.
yes I believe that’s correct, the stones are from Tennessee so my initial fear was that they were limestone but I tried the acid test on every rock and even cracked one open to test unweathered portion and no reaction whatsoever
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post #8 of 35 (permalink) Old 10-29-2019, 11:53 AM
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yes I believe that’s correct, the stones are from Tennessee so my initial fear was that they were limestone but I tried the acid test on every rock and even cracked one open to test unweathered portion and no reaction whatsoever
You should still soak one in water and test for gh and ph rise as compared to another glass of water pulled at the same time. Dolomite will often not have any reaction to the acid test but will still react in an aquarium. The acid test identifies 95% but the last 5% can really suck for us.

I am not at all familiar with the venturi. I have dabbled with a venturi design for my own use but it never seemed to produce the results I wanted, do you have a link for this creature? I am interested in anything that increases oxygen without outgassing co2.
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post #9 of 35 (permalink) Old 10-29-2019, 08:50 PM Thread Starter
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You should still soak one in water and test for gh and ph rise as compared to another glass of water pulled at the same time. Dolomite will often not have any reaction to the acid test but will still react in an aquarium. The acid test identifies 95% but the last 5% can really suck for us.

I am not at all familiar with the venturi. I have dabbled with a venturi design for my own use but it never seemed to produce the results I wanted, do you have a link for this creature? I am interested in anything that increases oxygen without outgassing co2.
I didn’t think there would be any dolomite present if there is no calcite present? Last night I scratched off crushed grains and tested it, no reaction. I’ll try again today with a warm solution of acid and see if that gets a reaction
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post #10 of 35 (permalink) Old 10-29-2019, 10:47 PM
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I didnít think there would be any dolomite present if there is no calcite present? Last night I scratched off crushed grains and tested it, no reaction. Iíll try again today with a warm solution of acid and see if that gets a reaction
Ah now you are going beyond my limited chemistry and geology experience. The foolproof method is to try it and measure the results. Beyond that you need more know how then I posses ;P
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post #11 of 35 (permalink) Old 10-29-2019, 11:09 PM Thread Starter
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Ah now you are going beyond my limited chemistry and geology experience. The foolproof method is to try it and measure the results. Beyond that you need more know how then I posses ;P
Lol no worries, I tried all the ways I could to test and no fizzing, just some staining from where the acid was dropped. I believe it is more of a quartz based rock like a previous poster mentioned.

n regards to the link for the Venturi, it’s the design from Tom Barr http://www.aquaticquotient.com/forum...ctor-w-venturi

I’ve used it in the past and it worked very well. I wasn’t into the whole misting effect so I liked the idea of full dissolution, the only downside is it could be an eyesore in the tank. Mine will be in a sump and the one I had in the past was in a AIO tank with an integrated sump.
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post #12 of 35 (permalink) Old 10-30-2019, 02:19 AM
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Ahh the Venturi is just for co2. I thought it was a means of oxygenating the water. I have been trying to find a way of adding extra oxygen to the water without bubbles outgassing my co2.


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post #13 of 35 (permalink) Old 10-30-2019, 02:56 PM Thread Starter
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Ahh the Venturi is just for co2. I thought it was a means of oxygenating the water. I have been trying to find a way of adding extra oxygen to the water without bubbles outgassing my co2.
I don’t see why you couldn’t still use the reactor. Instead of the CO2 line hooked up you can hook up an air pump. I would just use a small air pump so the bubble rate doesn’t outcompete the rate of dissolution.
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post #14 of 35 (permalink) Old 10-30-2019, 03:04 PM
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Ahh the Venturi is just for co2. I thought it was a means of oxygenating the water. I have been trying to find a way of adding extra oxygen to the water without bubbles outgassing my co2.
I apologize for incorrect information as my grasp of this chemistry is limited but it's my understanding that with sufficient surface exchange, co2 in water will reach equilibrium with the co2 concentration in the air above the tank. So therefore extra bubbles wont reduce the co2 lower than it is in the air. So unless you are adding co2, adding more bubbles will only bring the level of co2 in line with the air in your room.
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post #15 of 35 (permalink) Old 10-30-2019, 03:15 PM
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I don’t see why you couldn’t still use the reactor. Instead of the CO2 line hooked up you can hook up an air pump. I would just use a small air pump so the bubble rate doesn’t outcompete the rate of dissolution.
I have actually tried this.. a few times now really. It doesn't work very well because regular room air really really does not want to dissolve into water. It obviously does but only to a very limited extent. Even 1 bubble every 2 seconds for a 5 gallon bucket of water was way too fast. Somewhere around 1 bubble every 10 seconds seems to be the right rate but keeping that level of precision with the equipment I was using was difficult. Also my reactor was extremely large.

My issue is that I want to run pressurized co2 into a reactor. I also want to oxygenate my water for general improvement of fish health. If I have air bubbles reaching the surface then I will be outgassing my co2 at a rapid rate. Thus I am searching for a bubble-free method of oxygenation (other then plants of course).

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I apologize for incorrect information as my grasp of this chemistry is limited but it's my understanding that with sufficient surface exchange, co2 in water will reach equilibrium with the co2 concentration in the air above the tank. So therefore extra bubbles wont reduce the co2 lower than it is in the air. So unless you are adding co2, adding more bubbles will only bring the level of co2 in line with the air in your room.
My chemistry is also crappy so I can't tell you exactly where it all falls apart but it does somewhere along the way. Otherwise plants would grow as quickly with an airstone as they would with a dry start, which they clearly don't. Also, I do plan to have pressurized co2 running in my future tank, thus I am trying to find a way of saturate my water with oxygen without outgassing my co2.
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