{"id":80,"date":"2007-09-27T16:17:49","date_gmt":"2007-09-27T20:17:49","guid":{"rendered":"http:\/\/gwapa.org\/wordpress\/?page_id=80"},"modified":"2008-09-06T16:19:33","modified_gmt":"2008-09-06T20:19:33","slug":"fertilizer-auto-doser","status":"publish","type":"page","link":"https:\/\/gwapa.org\/wordpress\/articles\/fertilizer-auto-doser\/","title":{"rendered":"Fertilizer Auto-Doser"},"content":{"rendered":"<p>By Jeff Ucciardo<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"http:\/\/gwapa.org\/articles\/autodoser\/images\/autodoser.jpg\" alt=\"\" width=\"333\" height=\"500\" \/><\/p>\n<p><strong>Introduction<\/strong><br \/>\nLet&#8217;s face it, no one enjoys dosing their aquariums. It&#8217;s easy to forget          to dose, and even easier to add too much or too little fertilizer when          you do dose. Using a few parts that you may already have lying around,          building an autodoser to simplify this task is easy to do. While there          are commercial systems out there, most of them are more expensive than          this unit, and will not last as long without intervention.<\/p>\n<p><strong>Materials <\/strong><br \/>\nContainer: tall and skinny containers are better than short\/wide ones.          ($1)<br \/>\nWater pump: Look for one that draws from the bottom ($15)<br \/>\nPlastic syringe<br \/>\nTubing: You may need a variety of tubing ($2)<br \/>\nElectronic Timer ($10)<\/p>\n<p><strong>Setup<\/strong><br \/>\nDepending on the pump that you are using you may need a variety of tubing          or reducers. I find that a syringe works well for connecting the pump          to 3\/16 or 1\/4 diameter tubing. Get the container in the spot where it          will ultimately reside. Connect tubing to the pump so that it is long          enough to reach from the pump to the rim of the aquarium. You can add          some sort of nozzle to the end of the tubing; I used the little union          connectors for mini airline tubing, and your binder clips to secure it          to the rim of the aquarium.<br \/>\nCut a hole into the lid of the container so the power cord from the pump          and the tubing can go out of the container while the lid is closed.<br \/>\nFill the container with water and put the tubing over the tank rim to          be sure that the pump is strong enough to pump the distance you require.          You may have to raise the container up to reduce the head pressure.<br \/>\nDo some one minute interval runs; this will determine how much solution          you dose at a time.<br \/>\nAfter every one minute run mark the levels of solution (water) which will          tell you how many doses you can get out of your container. Also check          the accuracy, your marks should be at even intervals.<br \/>\n*Once it is set don\u00e2\u20ac\u2122t move the container!<\/p>\n<p><strong>Making a dosing solution<\/strong><br \/>\nBased on your current dosing you need to calculate how much fertilizer          needs to go into the container. Say you are dosing 1\/2 teaspoon of KNO3          every other day, which would be 3.5 teaspoons to cover two weeks. You          need to know how many doses your container will hold to figure how much          to add; it could be a week, 2 weeks or 17 days &#8212; every container is different.          Just add up what you are dosing per week and adjust accordingly.<\/p>\n<p>For example for my 29 gal tank, I mix<br \/>\n1 tsp. KNO3<br \/>\n3\/4 tsp. K2SO4<br \/>\n\u00c2\u00bc tsp. KH2P04<br \/>\n1\/2 tsp. Epsom Salt<br \/>\n* You can also mix macros and micros together, and then just dose PO4          separate.<\/p>\n<p><strong>What can go wrong will go wrong!<\/strong><\/p>\n<ol>\n<li> Siphon: make sure the end of the tubing stays out of the water<\/li>\n<li>I noticed that with daily dosing the plants use less fertilizer so            you may need to lower your dosing levels<\/li>\n<li> Degraded solution: I notice a slim coating when I mix up a new solution            after 17 days. Clean as necessary.<\/li>\n<li> Over time the tubing may need to be replaced, it can start to grow            stuff and cause a restriction in the flow.<\/li>\n<li>When the power goes out the digital timer will reset. It may also            get stuck in the on position! Use a timer with a battery backup.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"<p>By Jeff Ucciardo Introduction Let&#8217;s face it, no one enjoys dosing their aquariums. It&#8217;s easy to forget to dose, and even easier to add too much or too little fertilizer when you do dose. Using a few parts that you may already have lying around, building an autodoser to simplify this task is easy to [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":54,"menu_order":0,"comment_status":"closed","ping_status":"open","template":"","meta":{"footnotes":""},"class_list":["post-80","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/gwapa.org\/wordpress\/wp-json\/wp\/v2\/pages\/80","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gwapa.org\/wordpress\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/gwapa.org\/wordpress\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/gwapa.org\/wordpress\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gwapa.org\/wordpress\/wp-json\/wp\/v2\/comments?post=80"}],"version-history":[{"count":1,"href":"https:\/\/gwapa.org\/wordpress\/wp-json\/wp\/v2\/pages\/80\/revisions"}],"predecessor-version":[{"id":81,"href":"https:\/\/gwapa.org\/wordpress\/wp-json\/wp\/v2\/pages\/80\/revisions\/81"}],"up":[{"embeddable":true,"href":"https:\/\/gwapa.org\/wordpress\/wp-json\/wp\/v2\/pages\/54"}],"wp:attachment":[{"href":"https:\/\/gwapa.org\/wordpress\/wp-json\/wp\/v2\/media?parent=80"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}