Just sent the PM that the money has been sent plus fees for those 6 new 30-60 impellers. Wow what a great deal thanks!
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Whisper60,Penguin350,AquaTech30-60 Impellers all compatable
- Thread starter CWO4GUNNER
- Start date
:uhoh: ummm... gunner... today's a holiday. 
soooo :raspberry: it'll have to wait for tomorrow. if you don't mind. :worthy:
now back to your regularly scheduled program.
opcorn:
soooo :raspberry: it'll have to wait for tomorrow. if you don't mind. :worthy:
now back to your regularly scheduled program.
opcorn:
In the mean time I went ahead and rebuild those 3 used PF I bought. After dissembling and soaking in bleach water for a week they finally came clean but needed new impellers so I used the two I received from Pet Mountain to test out 2 of the 3 filters in a 10 gallon and as you can see they are refurbished and working great. If this were a real fish tank I think it would be considered over-filtered lol. Now I just need to receive the impellers you sent me and Ill have 3 rotational spares plus some spare impellers for my other 8 tanks with Nitrate filters in operation. So funny that even with identical new Tetra impellers installed, the Aqua-Tech on the bottom of the photo obviously out performs the Whisper 60 in GPH. This has always been the case and due probubly the the Aqua-Tech's curved J-tube has allot less resistance to waterflow compared to the right-angle bent J-tube the Whisper 60 uses, which restricts water flow intake.
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6 days in transit... horrible. if you didn't get them today, that's a week. argh...
ah, well... i think you'll be more than content once you receive them.
EDIT: that aqua-tech looks perfect for a nitrate filter. do the larger sizes have the bypass issue of the little one? or would you know?
ah, well... i think you'll be more than content once you receive them.
EDIT: that aqua-tech looks perfect for a nitrate filter. do the larger sizes have the bypass issue of the little one? or would you know?
Well with respect to trying to lushly grow a plant hydroponically in an aquarium rather then in a "controlled high nutrient (toxic PPM) hydroponic environment" exclusively for plant goth", fish aquarium water (not substrata) with its relatively low nutrient low toxin environment makes a pretty poor hydroponic environment for lush fast big growth. In other words if you were growing hydroponic veggies for food production and profit, that water body would kill a fish within minutes.
Having said all that, this is where the Power Filter comes in, not so much as a filter but as a "fish tank nutrient concentrator". The plant roots sitting inside an open aquarium does not benefit from a super nutrient hydroponic like water environment until that fish aquarium volume of relatively low PPM nutrient water is mechanically concentrated by the Power Filter which repeatedly exposes over time (GPH) the plants roots to the entire volume of the aquarium's waterborne nutrients (toxins) repeatedly which mimics a true hydroponic "for plants only" rich environment. There for the plant grows like gangbusters and the toxin levels of the water are reduced significantly.
So to answer your question, any device big or small that will concentrate the aquariums total volume of low PPM nutrients over the plant roots over time, will benefit far greater then just floating (un-planted) plant roots in a fish aquarium and proportionally reduce those toxic nutrients.
Having said all that, this is where the Power Filter comes in, not so much as a filter but as a "fish tank nutrient concentrator". The plant roots sitting inside an open aquarium does not benefit from a super nutrient hydroponic like water environment until that fish aquarium volume of relatively low PPM nutrient water is mechanically concentrated by the Power Filter which repeatedly exposes over time (GPH) the plants roots to the entire volume of the aquarium's waterborne nutrients (toxins) repeatedly which mimics a true hydroponic "for plants only" rich environment. There for the plant grows like gangbusters and the toxin levels of the water are reduced significantly.
So to answer your question, any device big or small that will concentrate the aquariums total volume of low PPM nutrients over the plant roots over time, will benefit far greater then just floating (un-planted) plant roots in a fish aquarium and proportionally reduce those toxic nutrients.
hmmm... might have been lost in translation. i have one of the small aquatech models.
the water comes up the tube and disperses in every direction into the reservoir including in front of the media it's supposed to flow through. the problem is the "walls on either side if the "j" tube inside the reservoir don't go all the way to the floor allowing the water to go where it pleases upon entering the filter housing. notice in your pic the whisper model seems to have more robust walls on either side of the angled "j" tube? well on that model the walls right there reach all the way down to the bottom of the reservoir forcing the water to go toward the back wall, around the "walls", out from the center along the back "wall" and behind the media to be forced through it. my small aquatech just lets some of the water into the reservoir and straight up in front of the media effectively bypassing it altogether. some water still goes through it, but not a whole lot.
it was given to me, so i don't really care about the bypass issue... but if i were to have the opportunity to pick a larger model up cheap i'd want to know if it has that issue when using regular media.
the water comes up the tube and disperses in every direction into the reservoir including in front of the media it's supposed to flow through. the problem is the "walls on either side if the "j" tube inside the reservoir don't go all the way to the floor allowing the water to go where it pleases upon entering the filter housing. notice in your pic the whisper model seems to have more robust walls on either side of the angled "j" tube? well on that model the walls right there reach all the way down to the bottom of the reservoir forcing the water to go toward the back wall, around the "walls", out from the center along the back "wall" and behind the media to be forced through it. my small aquatech just lets some of the water into the reservoir and straight up in front of the media effectively bypassing it altogether. some water still goes through it, but not a whole lot.
it was given to me, so i don't really care about the bypass issue... but if i were to have the opportunity to pick a larger model up cheap i'd want to know if it has that issue when using regular media.
The only way to know for sure whether that small filter will concentrate significant nutrients is to do a an experiment by placing a screen at the outflow and some media behind it like poly wool so that its easy to read, then take the same portion of poly wool and float it in the open tank for a month and then pull them both out and make observations as to their differences visually, odor, feel.
The rub is regardless of the evidence a person still has to make a choice in accepting and believing the evidence or truth. This is always the hardest part for all of us in life, whether or not we chose to believe. The definition of believe meaning "to have confidence or faith in the truth". Just because a person or group knows better, regardless of the evidence, doesn't mean as an individual or a group they will believe it. It required a choice.
The rub is regardless of the evidence a person still has to make a choice in accepting and believing the evidence or truth. This is always the hardest part for all of us in life, whether or not we chose to believe. The definition of believe meaning "to have confidence or faith in the truth". Just because a person or group knows better, regardless of the evidence, doesn't mean as an individual or a group they will believe it. It required a choice.
CWO4GUNNER are you positive about this? I pulled the impeller on my aqua-tech 30-60 to compare it to my marineland penquin 350 impeller and the marineland shaft was longer.Granted the magnet looked the same diameter but the 30-60 impeller was much shorter.This will not work for me due to the 30-60 rubber end isnt going down into the motor area far enuff to lock the bottom rubber piece into the motor.
Wow, a pretty old post lol. Its been so long since I did the repairs and they been running since so reliable except for the occasional plant root jam in the impeller, I cant remember what minor DIY mods I made to make 1 type impeller work on all 3 different models. I do remember having to play with them a little to make them work perhaps more so on the 30-60, sorry. I can say that since after discovering that de-nitrification which is far better occurs in some tree woods when allowed to water-log in that tank. So I am pretty much ready to pack in the whole HOB hydroponic concept, unless I build a pond and do it on a large scale. As viable filters I think open HOP have their place on smaller tanks especially since they use such low powered (8W) but there are much better HOB's like the Magnum 250 HOB which for about the same power consumption performs on a much higher level. For now Im still using my HOBs and installing a 4000KW home back up generator so that during power outages I can run home essentials like the fridge, swamp cooler, and auto switch to HOB's until over.
