All Discussions Tagged 'choy' - Aquaponic Gardening2024-03-29T11:11:26Zhttps://aquaponicgardening.ning.com/forum/topic/listForTag?tag=choy&feed=yes&xn_auth=noHuge Deficiencies in Large AP systemtag:aquaponicgardening.ning.com,2015-03-19:4778851:Topic:6003282015-03-19T14:51:39.010ZMathew Slatteryhttps://aquaponicgardening.ning.com/profile/MathewSlattery
<p>I have something not right in my large raft AP system. All plants appear to have deficiencies. Need HELP!! Any suggestions.</p>
<p>I have something not right in my large raft AP system. All plants appear to have deficiencies. Need HELP!! Any suggestions.</p> GH / KH / Carbonates / Bicarbonates trying to make sense of it all.tag:aquaponicgardening.ning.com,2013-02-16:4778851:Topic:4390452013-02-16T16:59:26.892ZBarthttps://aquaponicgardening.ning.com/profile/bartman
<p>My system has been running for about 7 months now, it's about 1300 L, / 350 G total with about 60 fish a combination of tilapia and gold fish all between 3" & 6" in size. I'm using one IBC 12" deep filled with broken clay brick as the media, and a second IBC 14" deep with a raft on it. Lots of air stones in different locations throughout and the media bed is constantly flooded.</p>
<p>The system is in my basement and each IBC is under a 400W MH lamp that we run 12hrs + per…</p>
<p>My system has been running for about 7 months now, it's about 1300 L, / 350 G total with about 60 fish a combination of tilapia and gold fish all between 3" & 6" in size. I'm using one IBC 12" deep filled with broken clay brick as the media, and a second IBC 14" deep with a raft on it. Lots of air stones in different locations throughout and the media bed is constantly flooded.</p>
<p>The system is in my basement and each IBC is under a 400W MH lamp that we run 12hrs + per day.</p>
<p>The issue - my top up water is a PH of 7.2 - my system PH will sit at 7.2 when I don't adjust the PH of the top up water via HCL. Some plants have some brownish spots on them - chard, bok choy. and the chard leaves don't always flatten out / open up, they often stay curled under. This issue seems worse on parts of the raft but does appear to some degree everywhere. <a style="cursor: pointer;"><img src="http://i925.photobucket.com/albums/ad93/ucsycybersmiley/102.gif"/></a></p>
<p>I was thinking (dangerous at the best of times but usually just to myself and my wallet) that based on what I had read maybe it was a calcium issue. I picked up some test strips, and my GH (General Hardness) is off the chart so above 180 but my KH (Carbonate Hardness) is below 40 - again, this is based on some test strips (from what I have read test strips are suspect at the best of times)</p>
<p>In the name of full disclosure, I have added some chelated Iron, some KCL and Mg via epsom salt.</p>
<p>I am greatful for any insight you can provide <a style="cursor: pointer;"><img src="http://i925.photobucket.com/albums/ad93/ucsycybersmiley/26.gif"/></a></p>