Thanks guys for the kind words.
The 5 ft tank is running on chiller, with 4 X 36W FL light. So it's less than 2 Watts per gallon. I have 1 bubble of CO2 per second and the substrate used is Dennerle aquarium gravel, which was in place in 2002. Very likely expired in nutrients as far as base fertiliser is concerned. I don't really change water. Perhaps 30% every 3 to 8 months.
I dose 4 squirts of Ferka (blue and green) whenever I'm around, which is not very often. But it seems to work so far as the other Cryptocoryne spp. are growing well. It's just the parva that painfully slow.
If any one wants an instant lawn, I've indicated that the 50 pots in the first post can only pack a Gex/Five Plan S size (1 ft) tank. So that should give you a good gauge.
Cheers,
I have dwarf cichlids in my tanks! Do you?
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