amneziaHaze
Well-Known Member
well you do know there are spunge filters for aquarium that use an airstone or airpump. and it moves and filters the water...
"Sponge filters" are not "ideally" used in the marine fish reefing hobby (specially for professional larger tanks), I do not know anyone who would ever consider to use a sponge filter on their $4,000-$20,000+ reef tank builds.well you do know there are spunge filters for aquarium that use an airstone or airpump. and it moves and filters the water...
Just out of curiosity, how much DO is average? Just say with a decent air pump/stone or like a waterfall? I ask cause you have a meter and sure you tested things out.A $2 air pump does 200 "liters" "aquarium", is irrelevant, soooo please, talk "quantitively" and not like an epic noobie.
Are you saying "200 liters" of "aquarium" water "per" what? "Per" every "sec", "min", "hour", "day", "week" or "month"?
Also how much "dissolved oxygen" (PPM or mg/L) can a $2 air pump provide for every gallon of water?
Do you realize that a proper system needs at least 1 L/min of air pump flow for every 1 gallon of water?
This means for a 50 gallon tank (about 200L), you'll need a 50L/min air pump for proper levels of dissolved oxygen.
You'll never ever find a 50L/min air pump for $2 anywhere in this universe my friend.
You might get away using a "$2 air pump" for maybe few goldfishes or 1 cannabis plant not growing larger than 2 foot tall..
You obviously would have no clue what I am talking about here... anyways I'm just laying out these info for people who would try not to follow your terrible advice in using a sponge filter (either for fish or hydro setups).
Anyways you need to follow and have the proper oxygen saturation/concentration in water for either fish or hydroponic systems.
Do not just listen what the fancy box label says "it does 200l aquariums" whatever that means... cause you'll end up with dead fish when you put your "prized" koi fish in the tank cause it'll consume all the "dissolved oxygen" in the water tank quickly. Same goes for cannabis plants.
Fresh water fish and marine water fish are different things my friend, salt water fish requires almost double the amount of dissolved oxygen as compared to fresh water fish.
Also you're laughable recommendation of using "sponge filter" can not provide the proper and optimal levels of "dissolved oxygen" with its huge globs of air bubbles, very inefficient.
If you really want to talk logically, you could have said to use a "$2 pump" bundled an "air/bubble diffuser", which creates much much finer small air bubble particles, this will indeed saturate the water with oxygen much more effectively than a sponge filter.
Here are some links to better educate yourself about proper "dissolved oxygen" levels and "science" for fresh water fish tank systems explained for noobies:
- https://aquariumtales.com/how-to-increase-oxygen-in-fish-tank/
- https://pondclearproducts.com/how_much_oxygen_do_your_fish_need.htm
- https://www.hakkoairpumps.com/subcat14.html
Here are some links to better educate yourself about proper "dissolved oxygen" levels and "science" for Saltwater fish tank systems explained for noobies:
- https://www.thesprucepets.com/dissolved-oxygen-levels-in-your-marine-aquarium-2924165#:~:text=Saltwater has a lower capacity,O2 than freshwater does.&text=Depending on species and stage,sufficient for most aquarium occupants.
- https://www.aquarieneco.com/news-55.html
Here are some links to better educate yourself about proper "dissolved oxygen" levels and "science" for Hydroponic systems explained for noobies:
This should start making you laugh why a "sponge filter" is such a terrible recommendation for cannabis hydro systems.
- https://www.royalqueenseeds.com/blog-dissolved-oxygen-the-key-to-massive-and-healthy-cannabis-plants-n877
- https://www.marijuanaventure.com/dissolved-oxygen/#:~:text=Cannabis growers have reported success,ready for use in irrigation.
- https://hortamericas.com/blog/news/are-you-maintaining-the-proper-oxygen-levels-in-your-hydroponic-production-system/
You could use it, but it would be a super bad way to implement it.
I like to oxygenate my hydro system as 100% confidently as possible, meaning I like to know the "exact" dissolved oxygen levels in the water tank.
I bought a lab grade "Atlas scientific" "Dissolved oxygen probe sensor" and can monitor, record and adjust the dissolved oxygen levels in reef tanks and also hydro setups. But you do not need to be such a professional as me and can do things properly without using a sponge filter or a lab grade Dissolved Oxygen sensor probe for professional or serious builds in hydros or reefs.
You're absolutely right, air pumps only pumps "air"... this means you're only getting 21% of effective dissolved oxygen for the every liter of air that is being continuously pumped into the bubble diffuser for every min. The air we breath only contains about 21% of oxygen.I read some where that little pumps like that and even air pumps with air stones only add air, not oxygen. The difference being the air we breath only has so much oxygen in it and is mixed with other gasses and what not. Now if you could use pure O2 that would be something. Like I said I read it some where while deciding if I was gonna go without an air pump/stone in my rdwc. That being said it might be BS or have some merit idk just thought I'd pop in
I was getting about 9 mg/L of D.O using air diffusers but was getting similar results with tap water as a control.Hell yeah glad to hear what I read wasn't BS lol. I've not heard of a pinwheel impeller pump till I seen this thread. If I was still looking for alternatives I probably would have gotten one. I got tired of hearing the air pump and made a spray bar that is connected to my circ pump. I call it the root spa lol. Anyway thanks for the reply.. peace
I wasn't questioning you or equipment. That's cool that you were able to build one. I'm not a techie lolI was getting about 9 mg/L of D.O using air diffusers but was getting similar results with tap water as a control.
The thing was that I was not getting great results for DWC hydro alone, the D.O was not increasing when I started boosting and upgraded to a bigger air pump.
Plants kept dying for "some reason". I was using tap water which has a PPM of 45 mg/L. So tap water is fairly top notch.
Using the common air stone diffuser are not effective in boosting the D.O greatly. You will need to use a proper "professional" "micro" or "nano" bubble particle diffusers to actually increase D.O levels considerably. The $100-$300 pinwheel impellers pumps can do this effectively. This is the reason why it is tired, true and trusted in the reefing fish community with people with their thousands of dollars reef tank builds with their "prized" marine coral fishes.
I believe the reason why common cheap air diffusers are very effective in DWC hydro setup is because the roots are actually touching 100% pure air pockets as the bubble rises to the top.
Either way, I wasted so much gallons of water, time and my energy. I decided to go to plan "B", I switch to "True Aeroponics" system that I custom built, the remaining sick plants that were limits to death on the 3rd retry run for DWC, sprouted hella back up and grew fast and healthy in 1 week when I placed them in the True Aero system.
I was completely astound with the results. Since then I never used any other hydro setups other than True Aero.
If you are "suspicious" with my claims or think I am just "bluffing"...
Here is a photo of my "lab grade" "Atlas Scientific" "Dissolved Oxygen Sensor Probe Kit". I believe I bought it for $250 about 7 years ago.
These types of probes are for engineers/electronic hobbyists who knows how to build custom electronic circuits and how to program their own code into proper microcontrollers to make these highly "affordable" lab grade sensors probes to work practically and precisely how you would like them to be useful. Instead of me spending $500 - $800 D.O sensor probes from a ready "pre-built" "ready made" unit from a different company.
Yes, I literally saved a whopping $250 to $550 to build my own lab grade D.O sensor and works better than the "Pre-built" "ready-made" stuff.
The poor thing has been collecting dusts for many years... It'll be put to good use for my current true aeroponic grow journal just for the fun of it
Take note of my printed signature and date stamp in the pic:
View attachment 5074422
Thanks for the excellent suggestion, will do it when I get the chance and will let you know about the readings.@linuxman if you have a meter, why don't you take a small submersible water pump and build a simple waterfall and post up some DO readings. then put a cap on the end of the waterfall tubing with some 1/8" holes and make it a sprayer like you have next to your kitchen sink and post up those results. thanks.
that is how i built my rdwc system and those roots have been by far the best of any method i've ever tried.The end cap with some holes to make a sprayer like waterfall is a nice idea and might give better D.O readings
My spray bar is kinda the same concept as the cap with holes except stretched out horizontally lol. Roots love it that's why it got the name root spa lolthat is how i built my rdwc system and those roots have been by far the best of any method i've ever tried.
on my scale of 1 to 5 id' put airstones at maybe a 1, waterfalls at a 2 and then serious aquarium tech at a 4 or 5 as far as DO. the real question is what "level" is optimal for cannabis roots.
Nice clean white massive population of roots, I'm sure you are using some kind of sterilization protocol to prevent root rot.My spray bar is kinda the same concept as the cap with holes except stretched out horizontally lol. Roots love it that's why it got the name root spa lol
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Yeah they love the root spa lol. No I don't use oxidizers or bennies. Have both used both it's been over a year since I've put anything but nutes, calmag and ph up/down.Nice clean white massive population of roots, I'm sure you are using some kind of sterilization protocol to prevent root rot.
Do you use chlorine or hydrogen peroxide for keeping a sterile DWC?
I highly doubt anyone would get clean roots like that without any kind of sterilization protocol/maintenance.
I currently bought a concentrated 54% of calcium hypochlorite (Pool Shock) and will make diluted solution which will dose this to the reservoir fully automatically using lab grade ORP sensor probe kit from "Atlas Scientific" to monitor the chlorine's oxidation redox levels which will help to keep the reservoir tank at a controllable sterile condition with a range of 4-5 PPM of chlorine in the reservoir tank. 4-5PPM of chlorine is completely safe for humans to drink and safe for beneficial bacteria, 4-5PPM of chlorine is also effective at keeping pathogens and diseases at bay.
From my research, there is a product called "Clear Rez" it is a tried and true product, heavily sworn and recommended by the LPA cloner guys.
I have seen many videos and results and the claims to really seem to be really good at keeping superb healthy roots.
The "Clear Rez" stuff is nothing more than diluted calcium hypochlorite solution.
A 1 pound bag of 54% of calcium hypochlorite, should last me many years of use for a HPA/LPA system.
Why post Google images of smaller ones if yours is bigger?This isn't my rootball, but, it is what I am talking about. This is what I normally end up with... Every 3 months... My rootballs actually end up being a bit bigger as they FILL the entire bucket right to the sides. hehehe
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Just wow, its very rare for me to hear someone say they do not use any kind of sterile reservoir tank protocol for a controlled/predictable healthy grow when using non-organic nutes. I can only imagine what exactly is keeping your DWC grow stable and healthy of keeping pathogens at bay.Yeah they love the root spa lol. No I don't use oxidizers or bennies. Have both used both it's been over a year since I've put anything but nutes, calmag and ph up/down.