Planted Tank Guru
Eriocaulon sp. 'Aquaticum' is another one of the easier eriocaulon specie to grow but still has a few demands. it prefers an acidic substrate such as Flora Base, Aqua soil, it will also do well in Eco Complete, add a little peat.
A deep substrate of at least 3" is necessary as this plant has a massive root system, take care when uprooting a large plant, you can gut the substrate (KH/GH/5 or less preferably).
Lighting needs to be within the 3wpg range.
CO2 injection is a necessity for robust growth, 24/7 managed and regulated for best results, a mist of C02 is also recommended.
Fertilization should be diligent, NPK, TE w/Fe.
The bio-filtration also plays an important role in the overall success of growing this plant and plants of this specie. filter needs to be large enough to produce good flow and house adequate media.
A very stunning and unique plant when grown to its glory in the aquarium.
It will get very large if allowed, but is slow to very slow in growth rate.