oneeyedfrog Posted March 26, 2011 Report Share Posted March 26, 2011 I have a few planted tanks . Most have a powerglo plus either 6500 or 10000k light on for 10hrs. The only ferts are jbl balls added when set up - over a yr ago. Till a couple of months ago all the plants were growing like mad then the stem plants started to get brittle and stopped growing some have disappeared completely now. We did change from bore water to rain water a few months ago so I wonder if some minerals are lacking. Any ideas? Quote Link to comment Share on other sites More sharing options...
Jennifer Posted March 26, 2011 Report Share Posted March 26, 2011 Yup, minerals might be lacking. Plants need calcium and magnesium and both are lacking in rainwater so you might need to add some. You might also find it helpful to supplement with a trace mix like Flourish Comprehensive. Quote Link to comment Share on other sites More sharing options...
Artem Posted March 30, 2011 Report Share Posted March 30, 2011 You should also put in new JBL balls as they are meant to be replaced every year Quote Link to comment Share on other sites More sharing options...
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