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I've had several stems of Macrandra growing in my 55g, they took about 6 months to start giving me new growth. I'll admit most of that time was because I didn't have the plant where it needed to be. 2 months ago I moved them to a full light area and they took off. I started having some K issues so I picked up some k2so4 and 10% FE, I don't dose kno3 b/c I have enough in the tank already. As of the last week, the new growth on my leafs have started to turn green starting at the tip moving towards the stem. I have not changed anything with the tank except for the k dosing. They were a very nice vibrant pink/orange and are my only colored plants in the tank. I have no idea what's causing it to change colors. The rest of my plants are showing much improvement since adding the additional K
 

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I've had several stems of Macrandra growing in my 55g, they took about 6 months to start giving me new growth. I'll admit most of that time was because I didn't have the plant where it needed to be. 2 months ago I moved them to a full light area and they took off. I started having some K issues so I picked up some k2so4 and 10% FE, I don't dose kno3 b/c I have enough in the tank already. As of the last week, the new growth on my leafs have started to turn green starting at the tip moving towards the stem. I have not changed anything with the tank except for the k dosing. They were a very nice vibrant pink/orange and are my only colored plants in the tank. I have no idea what's causing it to change colors. The rest of my plants are showing much improvement since adding the additional K
Oh the joy of keeping R. macrandra. I have had this plant turn several different colors in a matter of weeks for reasons that I can't explain. It started out bright red, then turned a lighter pink color, then back to bright red and after a heavy trim it went kind of a peach/orange color and the leaves almost looked variegated. It's one of those plants that puzzles me. It can grown like a weed and then if you look at it wrong it will start to wither away. I do believe after several attempts to keep this plant happy that it does best in lower kH water. Also after talking to some others I think it may help if its planted densely together. I will continue to try to figure out what makes this plant tick and what it likes and doesn't like.

What is your kH?
 
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