okay so if not all, most of my plants are starting to get brownish on the edges of the leaf. the most affected are my HC(which i garantee it will be dead soon) and some of the older leaf of the downoi. now my ranunculus has a brownish color around edge of the leaf. ive been read around the plant deficiency charts and the closest i could match my symtoms are under "nitrogen deficiency" but it dosent say what caused it and whats the fix. also some of the soil has this rust look to it.
any idea whats going on?
am i over dosing? under dosing? too much light too less lights/co2?
i do admit ive been lazy about doing the right measurements on dosing my tank. my other low tech betta tank seems to be doing way better than my high tech.
anyways here are my water parameters. ive been using the api 5 in 1 test strips while i wait for Amazon to ship me my complete test kit, so these readings are not exact
6 gallon tank
gh +/- 6.7*
kh +/- 3*
dosing dry SCAPE ferts every other day 3 times a week
+/- 3/8 teaspoon of kno3, 13% iron chelate, and kh2po4
pressurized c02 25-30 bps
X3 13w 6500k lights 8 hours a day
someone school me please before i kill off my plants !