I've been adding potassium bicarbonate(my tapwater is around a kh
of 2 so this adds buffer and potassium), chelated iron, Epsom salt, and some kelp extract.
When I first started the system there were lots of deficiencies, now they seem mostly under control (iron and then magnesium I believe). I also feed my fish 3 different forms of food a day as this helps bring in nutrients that maybe lacking in one type of food.
Also I have a sack of cooked and crushed egg shells by my pump to release calcium
I'll update the post I have for it when I get home
Fel's Planted aquarium/Aquaponic combo system!
^^The forum, I just updated it.
Sent from my HTC6515LVW using Tapatalk