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Post by Carl on May 16, 2013 19:18:22 GMT -5
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Post by goldenpuon on Jun 4, 2013 19:11:19 GMT -5
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Post by Carl on Jun 28, 2015 17:56:04 GMT -5
We have updated the "Aquarium Plant Care" article. This update includes the addition of Red Ludwigia to the popular plants section. From the article: "This plant is easy to grow and is found in Southern North America. It occurs naturally in swampier regions, such as those of lakes, ponds, and other areas of low intensity/stagnant water so high water movement is not needed.. The Red Ludwgia is one of the easier red plants to grow in the aquarium, being able to grow in moderate light conditions and with little added CO2. These too are excellent beginner plants with a fast growth rate with reasonable care. These plants also tolerate a pH range 6.5 – 7.5 "Resource: www.americanaquariumproducts.com/AquariumPlants.html#ludwigiaCarl
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Post by Carl on Jul 1, 2015 18:48:51 GMT -5
I have further updated the Aquarium Plant Care article: Here is a snip from the CO2 section: In fact, circulation that is aimed slightly down with high flow propeller/circulations pumps (such as the Seio) can actually keep lighter than water CO2 in the water longer where plants can utilize it. What is noteworthy is that H2O is more dense than CO2, so CO2 will constantly float to the surface. Simply blasting horizontally will not keep CO2 in the aquarium any more than a vertical current of air will keep a hot air balloon from rising. Thus what is needed is a slight "downdraft" that does not bounce right back up, so positioning propeller/circulation pumps should keep this in mind.Reference: www.americanaquariumproducts.com/AquariumPlants.html#carbonCarl
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Post by angelminx on Jul 2, 2015 6:54:12 GMT -5
Never thought about that before, just that you want to avoid wearing off the CO2 with water movement at the surface, while at the same time you want some surface movement for gas exchange (?)for oxygen for the fish (as well as a "current" in the tank to move nutrients around for the plants).
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Post by devonjohnsgard on Jul 2, 2015 11:25:13 GMT -5
Never thought about that before, just that you want to avoid wearing off the CO2 with water movement at the surface, while at the same time you want some surface movement for gas exchange (?)for oxygen for the fish (as well as a "current" in the tank to move nutrients around for the plants). This is more for a "high tech" type of tank where people are injecting co2 instead of using liquid carbon or relying on natural co2 being produced. The diffusers used, make fine little bubbles which float to the surface. This flow pattern helps make sure co2 gets and stays on all the leafs of the plants. Here's a picture of my small grow out high tech with co2. High light for quick growth. I tried to work on flow in this tank and right now have about 70x turn over. Pretty huge. Co2 diffuse on the right. Powerhead 320 gal each. Makes a circular flow pattern in the tank.
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Post by Carl on Jan 25, 2016 13:47:46 GMT -5
I have updated the "Planted Aquarium Care" article. Here is a snip from the article: "Effect of Aeration (air stones etc.) on CO2.
Aeration, whether it be from air stones, and/or breaking of the surface tension via the splashing effect of a HOB filter is essential for fish to provide necessary oxygen, HOWEVER this can also “drive off” important CO2 that you are adding to your tank for plants via a CO2 generator or even from normal fish respiration. This said, even when I inject, I will have surface movement with a circulation pump (such as durable Seio pump) pointed towards the surface (along with another pump aimed down as noted earlier). This may wear off some CO2, but O2 is very important for fish and Redox balance and this agitation also brings in things like Nitrogen. "Reference: www.americanaquariumproducts.com/AquariumPlants.htmlCarl
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Post by childofiam on Jan 25, 2016 19:06:08 GMT -5
I have further updated the Aquarium Plant Care article: Here is a snip from the CO2 section: In fact, circulation that is aimed slightly down with high flow propeller/circulations pumps (such as the Seio) can actually keep lighter than water CO2 in the water longer where plants can utilize it. What is noteworthy is that H2O is more dense than CO2, so CO2 will constantly float to the surface. Simply blasting horizontally will not keep CO2 in the aquarium any more than a vertical current of air will keep a hot air balloon from rising. Thus what is needed is a slight "downdraft" that does not bounce right back up, so positioning propeller/circulation pumps should keep this in mind.Reference: www.americanaquariumproducts.com/AquariumPlants.html#carbonCarl I did this today with a Aqua Clear 20 chocked down half way... To my surprise my drop checker indicated that the CO2 levels had increased in about an hour and I needed to add O2. Before the power head the small bubbles where getting to the surface and now they are pushed down and around the tank. Aqua Clear 20 is injecting air bubbles in this pic, my CO2 bubbles are to small to see two feet away from the power head but are being pushed down. Richard
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Post by devonjohnsgard on Jan 26, 2016 11:57:48 GMT -5
Ya, the power head does a good job on keeping the co2 down and on the leaf where they need to be.
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Post by Carl on Mar 13, 2016 11:46:02 GMT -5
I have updated the popular "Planted Aquarium Care" article Here is a quote from the Nutrients/Ferts Section: "Now, with other methods of adding nutrients or "ferts", such as the "The Estimative Index of Dosing" (by Tom Barr), the ferts, which are added, with the large water changes performed, generally should take of these minerals and it is a non-issue (water changes are part of the course of this method, in part to control temporary and artificially high nitrates)."Reference: www.americanaquariumproducts.com/AquariumPlants.html#nutrientsCarl
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