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#16
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Call the water company and ask for a copy of their annual analyses. Tell
them what you are doing so they understand what you need and why and aren't just some trouble maker. They tend to be paranoid. I live way out in the country. I am my water comnpany :-) -- Need Mercedes parts ? - http://parts.mbz.org http://www.mbz.org | Mercedes Mailing lists: http://lists.mbz.org 633CSi 250SE/C 300SD | Killies, killi.net, Crypts, aquaria.net 1970 280SE, 72 280SE | Old wris****ches http://watches.list.mbz.org |
#17
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You're in the right ballpark. I'd worry about traces. My tanks were doing
fine too ... but I doubled the growth rate when I started adding K. So the new stuff is doing well? I've been having fun... My wife is painting the living room.... I'm kept busy draining tanks and moving then away from the wall. Oh my back! enjoy Bob "I3 I L L" wrote in message oups.com... Well, I must be something right if I my plants continue to grow. My kh is 6 degrees(107ppm) and gh is 6 degrees as well. I add baking soda to kick up the kh. I was referring to those Chuck Gadd calculators in my previous post, they are very helpful. |
#18
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That makes it a bit more expensive ;-) I've been there ... had iron levels
you could walk on. I tolerated it but my wife couldn't drink it. Of course, in the days before Gillette, Wyo put in the new water system I even got to the point I could tolerate the water there. Epson salts :-) made really dangerous coffee. Bob "Richard Sexton" wrote in message ... Call the water company and ask for a copy of their annual analyses. Tell them what you are doing so they understand what you need and why and aren't just some trouble maker. They tend to be paranoid. I live way out in the country. I am my water comnpany :-) -- Need Mercedes parts ? - http://parts.mbz.org http://www.mbz.org | Mercedes Mailing lists: http://lists.mbz.org 633CSi 250SE/C 300SD | Killies, killi.net, Crypts, aquaria.net 1970 280SE, 72 280SE | Old wris****ches http://watches.list.mbz.org |
#19
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I add baking soda
Ah, ok that explains it. That works. -- Need Mercedes parts ? - http://parts.mbz.org http://www.mbz.org | Mercedes Mailing lists: http://lists.mbz.org 633CSi 250SE/C 300SD | Killies, killi.net, Crypts, aquaria.net 1970 280SE, 72 280SE | Old wris****ches http://watches.list.mbz.org |
#20
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The PMDD arrived today. I did my 50% water change. Now I mixed one
teaspoon with 1/2 liter of distilled water. Does this sound correct before I add it to my tank(12G)? |
#21
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I3 I L L wrote: The PMDD arrived today. I did my 50% water change. Now I mixed one teaspoon with 1/2 liter of distilled water. Does this sound correct before I add it to my tank(12G)? That only sounds like half the story, Bill. On chuck's page, the recipie (I think) puts a Tablespoon? in the water? And then, you only add a few ml of that potion to your tank on a weekly basis. One source I read said about 4 drops for each 20 gallons or something like that. Tom Barr recommends, for a full up jungle tank of 75 gallons, with high lights and C02... 15mil of traces 3 times a week. That's 15 mil of the diluted solution. steve |
#22
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I am rapidly realizing that I should have ordered each ingrediant
seperatly. If I add 2 teaspoons of the PMDD to my 1/2 liter (34mL), I get 4.45ppm nitrate in KNO3. That's not too bad considering it should be around 5ppm. Now with that same 2 teaspoons I get 2.81ppm potassium in KNO3, 3.49 potassium in K2SO4. Potassium levels should be about 15-20 ppm. Lastly, I get .69 ppm magnesium when it should be 5-10ppm. What should I do at this point??? |
#23
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That should say 34 fluid ounces and I just realized Chuck's calculator
is in mL. WHOOPS. Are my calculations correct, 1005.50ml in 34 fl oz? |
#24
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In article .com,
I3 I L L wrote: I am rapidly realizing that I should have ordered each ingrediant seperatly. If I add 2 teaspoons of the PMDD to my 1/2 liter (34mL), I get 4.45ppm nitrate in KNO3. That's not too bad considering it should be around 5ppm. Now with that same 2 teaspoons I get 2.81ppm potassium in KNO3, 3.49 potassium in K2SO4. Potassium levels should be about 15-20 ppm. Lastly, I get .69 ppm magnesium when it should be 5-10ppm. What should I do at this point??? Ignore the potassium. As long as you're regularly adding potassium nitrate your plants won't be potassium limited. The potasium level is more for people that have enough nitrates and have to add only potassim. -- Need Mercedes parts ? - http://parts.mbz.org http://www.mbz.org | Mercedes Mailing lists: http://lists.mbz.org 633CSi 250SE/C 300SD | Killies, killi.net, Crypts, aquaria.net 1970 280SE, 72 280SE | Old wris****ches http://watches.list.mbz.org |
#25
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I3 I L L wrote: I am rapidly realizing that I should have ordered each ingrediant seperatly. If I add 2 teaspoons of the PMDD to my 1/2 liter (34mL), I get 4.45ppm nitrate in KNO3. That's not too bad considering it should be around 5ppm. Now with that same 2 teaspoons I get 2.81ppm potassium in KNO3, 3.49 potassium in K2SO4. Potassium levels should be about 15-20 ppm. Lastly, I get .69 ppm magnesium when it should be 5-10ppm. What should I do at this point??? Um, I guess I should suggest what worked for me. I was totally confused for a week or two, and had to keep going back to the calculator, Greg Watson's page and the write up on "Estimative Index" by Tom Barr. After two weeks of thinking I had it down and relearning it when I once again found myself dumb, I finally grasped the concept and understood the basic plan. Here's on point I think you may have missed because it hasn't come up in your previous posts. The calculator lets you know how much stuff is in each ml of the solution you've made. But you're making a larger amount, unless you put "1" in the ml of solution box. Using the calculator, it gives you several boxes to fill in. I use the teaspoon box, and fill in the amount of water box with 100 ml. I never click the recalculate box as that changes the page in a weird way. When you click on one parameter and then another, the calculation takes affect. So, try this; Put .5 teaspoon in the amount box for KNO3. Put 100 ml in the amount of solution box and 20g for tank size. Now the answer will be .23 ppm nitrate in potassium nitrate, right? FOR EACH MILLITER. If you multiply the answer by 100, it will tell you the total effect of the 1/2 teaspoon in your 20g tank. Now, about PMDD... I ordered the trace mix, and a bag of KNO3 and a bag of KH2P04. Since I have plenty of phosphates in my water already from fish food, I don't us the KH2P04 and have since had to buy KCI, pure potassium. Using the calculator for those, I dose accordingly. What is the ratio of KNO3, KH2P04 and trace elements in the PMDD recipie you bought? By knowing that, is that how you're using Chuck's calculator? steve |
#26
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With your calculations, why is it .23ppm nitrate per mL? I thought the
concentration was .23ppm for the entire 100ml mix. But, now that I look at it more carefully I see that you are right. Here's the way I had planned on mixing using the Chuck Gadd's calculator. I would combine 100 ml of water with 3 tablespoons of PMDD mix and dose for my 12 gallon tank. However, the concentration is too great after reading your post. With the 3 tablespoons and 100ml of water, it yields a concentration of 6.8ppm nitrate in KNO3. If I then multiply by 100, I would get 680ppm, which is way too high. So perhaps 1/8 teaspoon of my mix with 100 ml is a better solution for my tank? How does that seem? On the front of the bag it says, "PMDD Pre-mix one pound, contains equal parts: Plantex CSM + B, MgSO4+7H20, K2SO4, KNO3." Thanks for the clarifications. |
#27
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These are the results I get using .12 (1/8) teaspoons in 1 ml water for
10 gallons of water (in a 12 gallon tank): 10.85 ppm Nitrate - target is 5ppm 6.85 ppm Potassium - (from KNO3) 8.54 ppm Potassium - (from K2S04) 15.38 ppm Potassium total - target is 20ppm 1.7 ppm Magnesium - target is 5-10 So yeah, I think that's a good starting point as your're getting near enough potassium and magnesium without going overboard on the nitrate. Remember though, your fish food adds an amount of nitrate so I'd only do the 1/8 teaspoon dose along with a 50 percent water change weekly. If -a you got lottsa plants, they might use all the nitrates which is good, then you can start dosing more. steve |
#28
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Ok, thanks for all your help. I have very few fish, so my nitrates get
used up very radiply. I normally get 0ppm. But I will watch that very carefully. Thanks again! |
#29
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Well you still need some PO4, K+ and NO3.
GH sounds fine. You can add lots and lots of PO4 ansd have great pl;ant growth, PO4 is not the issue that causes algae in planted tanks. Tap water with 1-2ppm ranges are great, then you don't need to add KH2PO4. Regards, Tom Barr |
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