yes, which is why most people uses canister filter for planted tank, low or no surface agitation. while shrimp tanks usually have low requirement plants due to sponge filter or hof
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wavemaker
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Hmm okay thanks a lot! berny 👌
For a hang-on-filter to create circulation around the tank, you need to make sure the output ramp of the filter is partially below the water level, so instead of water dropping directly down into the water surface, it should curve and flow across the surface and around the tank in a circular returning pattern.
You can test it by dropping in a semi-floating food pellet and watching it travel in mid-water around the tank, that could give you an idea of the circulation pattern.
Ideally it should move across the top surface, then drop down the opposite side glass wall, travel along the substrate and end up under the filter output, float up, then get pushed across again.
Hi Ker,
I think your question needs some clarification. are you asking
1. will HOF given enough circulation for CO2 and other nutrients?
2. Will HOF diffuse/dissolve enough CO2?
3. Will HOF preserve enough CO2 in the water column?
1. HOF circulation, whether or not its enough depends on your tank dimension.
2. I suggest not depending on your HOF for CO2 dissolution. run the output of the HOF towards the CO2 diffuser if you are using one. this will disrupt water flow near the water flow. there are people who believe that will improve CO2 dissolution. I am one of those.
3. to preserve CO2 in the water, you need to ensure KH is low, water temp is low and surface agitation is kept minimal.
I am balding but i am still young!
Wow you guys are really the expert! I think I have made a lot of mistakehopefully I could upload some pics for you guys to view and advise me . Big Thank you to all !!
Last edited by Ker; 11th Oct 2013 at 15:35.
HOF can circulate water, due to the design of water flowing out like a waterfall from the "Lip" there is alot of Co2 lost there (water to air surface contact ratio affects the exchange of gas mainly oc and co2.)
Put your diffuser at the exit lip's direction so that the down current from hof makes co2 stay longer in water.
If you can, upload a picture to the fourm (gallery or photobucket also do fine) & give as much info as you can about your tank.
It will provide more insight & bros here will find it easier to give you more accurate advice.
psst, don't worry nice or not. we all been through not so pretty tanks.![]()
Learning the hardway, not the highway.
Photo Blog - impervious-endeavors.blogspot.com
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"if he cant be bothered to take the time to write his question properly, why should I take the time to answer him."
Looks like Sicce did a better job then JEBO, i see got powerhead inside.
Questions, when you bought it or rather where you bought it from. Did they sell the replacement plates & were they affordable?
Just for reference here's the jebo unit picture vs the Sicce picture. (you can google and make yourself happy)
Last time got some folks using
http://www.aquaticquotient.com/forum...-CO2-Generator
@Erctheanda, Eirc i have tanks that are always not nice to me. Don't feel so bad la.
Learning the hardway, not the highway.
Photo Blog - impervious-endeavors.blogspot.com
Semi-Active currently
"if he cant be bothered to take the time to write his question properly, why should I take the time to answer him."
[QUOTE=felix_fx2;745311]Looks like Sicce did a better job then JEBO, i see got powerhead inside.
Questions, when you bought it or rather where you bought it from. Did they sell the replacement plates & were they affordable?
Felix: I bought it from polyart at clementi I just like to try it out as I have limited space on my table they do sell cartridge that comes in 3 cost about 60++ but I only seen my plants pearl oncelooks like it didn't work
IMHO, HOF is good for small tanks, im currently using a 2041 Eheim Liberty on a GEX "S" tank. Water filled to the brim, HOF tuned to half output and pumping CO2. Plants grew well and pearlingIn the end, it boils down to how/what you thing is suitable for your setup.
Advice from boss Felix
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