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R/O Water | |
gauntlet Enthusiast Posts: 240 Kudos: 277 Votes: 8 Registered: 21-Jan-2004 | Well its been along time since I had tanks and decided to jump back in to it. Did some test on my city water here and i have nearly .50ppm ammonia coming out of the tap as well as nitrate of 5.0ppm. I use to use pure r/o water before with r/o right adding discus or freshwater essentials. To replenish the minerals the r/o unit takes out. My question is this ok or can I go a different route. Picking up a gh and kh tester tomorrow. Also my ph is like 7.6-8 after a 24hr sit. Retesting tomorrow with water conditioner. Thanks for any thoughts you guys might have. |
Posted 28-Apr-2010 03:17 | |
FRANK Moderator Posts: 5108 Kudos: 5263 Votes: 1690 Registered: 28-Dec-2002 | Hi, Welcome back to the hobby! I've no idea how long you have been gone, so to refresh you a bit, most water treatment facilities now use a combination of chlorine, and a compound called chloramine to eliminate bacteria from the water. Chloramine is a compound that results from the combination of chlorine and ammonia. When you add a dechlorinator to the water that is designed to neutralize the chloramine, it simply changes its formula, but still remains ammonia. The test kits cannot distinguish between the ammonia caused by fish urine and the ammonia that the water treatment plants add. The test kits read the total ammonia present. That is what could be happening. Your test results could also be colored (pardon the pun) by the type of kit you are using and the age of the kit. Test strips, while the least expensive, are also the worst when it comes to accuracy as well as being the most susceptible to contamination by light, heat, moisture, and age. Depending upon where you live, a nitrate reading of 5 is actually very possible. Especially if your water plant gets its water from an area that is involved in farming. The water run off from the fields that have been fertilized, will be "rich" in nitrate. You can reconstitute the water with other chemicals, but that becomes expensive in the long run. "They" do make products that will turn RO water into water "just right" for discus, etc. But the expense of constantly purchasing and mixing the chemicals can become a burden. It might be easier to fill a container of known volume, say 10 gallons, with either regular tap water or RO water (more expensive this way) and then take out a gallon of tap water and add a gallon of RO water, stir, and then test. The goal is to eventually know that for every so many gallons of tap water you need to add so many gallons of RO water to achieve you goal. Then, when doing future water changes you don't have to mess around. Simply drain off, say 10 gallons, and replace it with x number of gallons of tap water and mix in y number of gallons of RO water. If your tap water consistently tests out with a pH that high, it would be way less expensive to keep only fish that thrive in water with a pH that high, instead of trying to alter the water down to something that is not "normal" for that water source. Keep in mind, also, that water treatment plants usually have more than one source of water that they draw on and routinely change the source. 4-6 months from now your tests may produce different results. Frank Just some thoughts -->>> The Confidence of Amateurs, is the Envy of Professionals <<<-- |
Posted 28-Apr-2010 05:00 | |
gauntlet Enthusiast Posts: 240 Kudos: 277 Votes: 8 Registered: 21-Jan-2004 | So i tested my 24 hour old dechlorinated tap water for gh and kh and got a gh of 6, kh of 7 and ph 7.8. I did a mix of r/o and tap 50/50 and got a ph of 7.8, gh of 4 and a kh of 4. Any thoughts? What the chemical that makes the water just right for discus? I've used R/O right in the past. What level of kh do I need to keep the water buffered from wild ph swings. The cost of adding chemicals is doable if it means getting the best results i can. Bought brand new api test kits liquid kind no dirty test strips. Thanks so far for all your advice cheers |
Posted 03-May-2010 19:10 | |
FRANK Moderator Posts: 5108 Kudos: 5263 Votes: 1690 Registered: 28-Dec-2002 | Hi, You can use any product that will lower the pH of the water such as "pH-Down." All of them are acids, and if your KH is too high, then the pH will drop and then rise again as the KH od the water buffers the acid. That Yo-Yo effect will harm the fish as they cannot change their me It stress their systems. It would appear that you would need to increase the ratio of RO water to the tap water to get the KH down to 3 or below. You may even have to use pure RO water and reconstitute the water. There is a product available that you can use for that. Frank -->>> The Confidence of Amateurs, is the Envy of Professionals <<<-- |
Posted 03-May-2010 22:57 | |
gauntlet Enthusiast Posts: 240 Kudos: 277 Votes: 8 Registered: 21-Jan-2004 | Yeah I want to avoid the yo yo affect with my water. Just that 7.8 is not conducive to keeping some of south american species I'm looking at. I'll keep playing with the water some more. What's the product called that can reconstitute r/o water? Thanks so far it's been a lot of help |
Posted 04-May-2010 05:30 | |
Babelfish Administrator Small Fry with Ketchup Posts: 6833 Kudos: 8324 Votes: 1570 Registered: 17-Apr-2003 | Another idea might be to run a small 10 or 20 gallon tank as a planted only tank. The plants would absorb the ammonia and nitrate then you could use that water for your water changes. ^_^ |
Posted 04-May-2010 23:34 | |
gauntlet Enthusiast Posts: 240 Kudos: 277 Votes: 8 Registered: 21-Jan-2004 | Leave it to babel to find a excuse to have another tank set up I would if I could but the landlord says no |
Posted 07-May-2010 05:01 | |
Babelfish Administrator Small Fry with Ketchup Posts: 6833 Kudos: 8324 Votes: 1570 Registered: 17-Apr-2003 | Am I really that transparent um? hide it ? Two of our tank stands are designed to have smaller tanks under them. Small tank under larger tank, toss some curtains up on the stand, landlord will never know. Easier than feeding said landlord to the piranas. ^_^ |
Posted 07-May-2010 22:52 | |
FRANK Moderator Posts: 5108 Kudos: 5263 Votes: 1690 Registered: 28-Dec-2002 | Hi I'm sorry to have taken so long to reply. I've been out of state for a family wedding and on Tuesday night my wife had a heart attack. Between all that and work, I think I actually met myself coming back! Reconstituting R/O water can be as easy as adding small quantities of regular tap water to the R/O water. Or, there is a compound you can purchase that you stir into the R/O water, mix well, and aerate with an air stone, to keep agitated until it is used. http://www.ehow.com/how_6174901_reconstitute-ro-water-discus.html http://www.aquaria.info/index.php?name=News&file=article&sid=347&theme=Printer Frank -->>> The Confidence of Amateurs, is the Envy of Professionals <<<-- |
Posted 13-May-2010 14:11 | |
gauntlet Enthusiast Posts: 240 Kudos: 277 Votes: 8 Registered: 21-Jan-2004 | Thanks so much for the reply. Sorry to hear about your wife is she doing alright? I wish her a speedy recovery. |
Posted 17-May-2010 03:55 |
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