Abono, CO2 y substrato :
SUBSTRATE: DIY substrate made of 40% Lateritic soil and 60% Sand. Over the DIY substrate I put 1 cm of sand, an on top that I put 2 to 3 cm of gravel. I left only sand where I was going to put the Glossoestigma elatinoides and Eleocharis minima.
FERTILIZER: I have not been very rigorous, but I usually use two local liquid fertilizer called "Fertibon" and "Fertibon Calcio". These are the compositions (Composition %p/v): "Fertibon": Fe 0,08 - K 1 - Mg 0,5 - Mn 0,04 - Mo 0,03 - Zn 0,02 - Cu 0,0025 - B 0,0075 - S 1,2 - Co 0,0003 - I 0,0005 / "Fertibon Calcio": Ca 5. In every water change I use more or less 15 cc of FERTIBON Calcio. And the next day I apply 15 cc of FERTIBON. I am also using a DIY table fertilizer made out of bonsai fertilizer. I apply these tables when I notice some deficiencies in a particular plant.
CO2 SUPPLY: Milwauke Co2 Regulator MA957 -- 1 bubble per second. I'm using a small atman pump to break the co2 bubbles.
WATER CHANGES: Once every two to three weeks, 30 to 40% of the tank volume.