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I notice that all the plants in my tank are quite leggy, with very long
internodes. The tank is 72 gallons, and has 4-55W AH supply PCF lights on 13
hours/day. What I am wondering is if somehow I am putting in more nutrients
and CO2 than the lighting requires, and that is why the plants are so leggy?
Or is it just too little light?
The leggy plants are:
Ambulia, E. stellata, Potamogeton gayi, Hydrotiche
hottoniflora...practically anything I put in there. In addition, glosso and
micranthemum micarnthemoides grow straight up.
pH is 6.6, KH=GH=5.5, 74 degrees. 1/2 gravel, 1/2 flourite substrate. Twice
weekly (at water change and 1/2 way in between) the plants get 15 ml each of
Flourish and Flourish iron, 1/2t KNO3, 1t K2SO4, 1/16t KH2PO4. The KH and GH
are normally around 2; the values above come from baking soda and Seachem
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