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#1
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position of co2 defuser
I am running a wet/dry trickle system on a 100gal tank with the defuser in
the sump - the outlet is directed straight at the inlet of the return pump which directs the return to minimise surface disturbance. I seem to get an inconsistant growth rate across the tank tank setup is 10 discus 20 or so rummy nose tetras 20 or so bleeding heart tetras 10 cory catfish 2 bristlenose 10% weekly water change using dupla laterrite an Australian product Aquasonic basic Grow and daily drops 1.9WPG trickle filter fluval 404 PH 7 KH 6 FE 1.0 with presurised CO2 and I know some one is going to tell me the fish load is bit high but no problems to date |
#2
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position of co2 defuser
"dean coclonis" wrote in message
. .. I am running a wet/dry trickle system on a 100gal tank with the defuser in the sump - the outlet is directed straight at the inlet of the return pump which directs the return to minimise surface disturbance. I seem to get an inconsistant growth rate across the tank What exactly do you mean by an inconsistent growth rate across the tank? Are you saying that plants in one location grow better than in another? If that's the case, it's unlikely that it's due to some kind of an uneven CO2 distribution in the water. I don't know how that could happen, unless the circulation is very poor, which I doubt is happening with your equipment. Maybe the the light intensity simply varies across the tank (because tall plants are blocking the light in some places). using dupla laterrite an Australian product Aquasonic basic Grow and daily drops Do those products list their composition? I'd make sure they include all the essential micronutrients. You don't say if you dose any macronutrients (KNO3, K2SO4, etc). If you don't, perhaps your plants are limited in potassium or nitrate, which would cause the growth rate to be slow. In a nutrient-poor environment, some plants will outcompete others for nutrients and grow better. fluval 404 PH 7 KH 6 That only means 18 ppm CO2. I would increase the CO2 flow a little to make it be around 25 ppm. Don't worry about surface agitation in your trickle filter driving off the CO2. More agitation causes the CO2 level to be more stable. __ Alex pcalex (at) hotpop.com |
#3
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position of co2 defuser
Aquasonic's basic grow quotes that the producted is presented in a liquid
form with several of the important nutrients chelated, these include iron and maganese The Daily grow supplies iron and full range of trace elements so it looks as if the potassium and nitrates may be bit low. Have been relying on the fish load for the nitrates but will try and source PMDD and give that a go. I tried to find out what was in their (Aquasonics) solutions a while ago but was told it was a proprietry product and was unable to give the information so I asked for a Material Safety Data Sheet but they gave me a pretty good reason for not being able to supply that also. will try a ph 6.8 and kh 6 should give me a co2 mg/litre of 28 on the dupla system "Alex R" wrote in message news:PmODa.877770$Zo.198447@sccrnsc03... "dean coclonis" wrote in message . .. I am running a wet/dry trickle system on a 100gal tank with the defuser in the sump - the outlet is directed straight at the inlet of the return pump which directs the return to minimise surface disturbance. I seem to get an inconsistant growth rate across the tank What exactly do you mean by an inconsistent growth rate across the tank? Are you saying that plants in one location grow better than in another? If that's the case, it's unlikely that it's due to some kind of an uneven CO2 distribution in the water. I don't know how that could happen, unless the circulation is very poor, which I doubt is happening with your equipment. Maybe the the light intensity simply varies across the tank (because tall plants are blocking the light in some places). using dupla laterrite an Australian product Aquasonic basic Grow and daily drops Do those products list their composition? I'd make sure they include all the essential micronutrients. You don't say if you dose any macronutrients (KNO3, K2SO4, etc). If you don't, perhaps your plants are limited in potassium or nitrate, which would cause the growth rate to be slow. In a nutrient-poor environment, some plants will outcompete others for nutrients and grow better. fluval 404 PH 7 KH 6 That only means 18 ppm CO2. I would increase the CO2 flow a little to make it be around 25 ppm. Don't worry about surface agitation in your trickle filter driving off the CO2. More agitation causes the CO2 level to be more stable. __ Alex pcalex (at) hotpop.com |
#4
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position of co2 defuser
On Wed, 4 Jun 2003 20:03:52 +0930, "dean coclonis"
wrote: I am running a wet/dry trickle system on a 100gal tank with the defuser in the sump - the outlet is directed straight at the inlet of the return pump which directs the return to minimise surface disturbance. I seem to get an inconsistant growth rate across the tank tank setup is 10 discus 20 or so rummy nose tetras 20 or so bleeding heart tetras 10 cory catfish 2 bristlenose 10% weekly water change using dupla laterrite an Australian product Aquasonic basic Grow and daily drops 1.9WPG trickle filter fluval 404 PH 7 KH 6 FE 1.0 with presurised CO2 and I know some one is going to tell me the fish load is bit high but no problems to date I've read that wet/dry filters will release the CO2 from the water faster. |
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