Ludwigia repens deficiency
Iím very new to planted tanks and have started with easy plants. (More at home with Mbuna but had no room for 200Gal Mbuna tank when we moved home and couldnít see myself with a small Mbuna setup!) No substrate as yet, 1Ē of sand only. Vallisnera and anubias are both growing well but my repens in the video linked above is not fairing well. I have a deficiency in my repens that I am struggling to resolve. Ammonia/nitrite/nitrate are all 0ppm, temp 26 deg C, all plants have been in over 5 months, repens 9 weeks to press. I have no c02 and dose with tropica premium ferts. Four weeks ago I started to up the dose from 2 squirts per day to 3. Directions state 18 pumps per week for 180ltr tank so I am now over this. And two weeks ago I started to add the directed amount of sea hem iron but this has made no improvement. I have two 13w led Arcadia bulbs, one sunlight the second a tropical. They are on 6 hrs aday.
Fish stocking - 9 Cory, 5 sterbae, 3 ancistrus, 2 bosemani, 8 neons, 1 rummynose.
Any help would be appreciated.