Growing hc also need luck some can grow it without cold water but some with cold water also cannot make them flourish.
Hc carpet emersed.
Light will be medium high.
Just started my hc carpet 1 5week ago going to complete the emerse to submerge stage.
With excel and ample lighting the hairgrass was spreading much much faster and denser on submersion.
The emersed part will be misted and fogged regularly in the paludarium.
Majority in the trade or aquaria market sells cuba in the emersed form and it has roundish leaves.
Imo it s all about lighting and co2.
I don t think emersed growth works as well for hairgrass in terms of getting a very thick coverage like with hc.
This method should work well for all mosses most grasses and most other carpet plants like hemianthus callitrichoides and glossostigma elatinoides.
Glosso will be a better choice if it is frst time trying.
But it does demonstrate that high light no co2 doesn t always translate into an automatic algae fest that is if the plants are growing well.
All fine in about a week or 2.
It s almost tempted me to start a palaudarium.
17 days from planting three small 4x4cm pots of hc.
However i think the initial 1 month of being established when emersed helped a lot and prevented algae issues with the hairgrass.
Will hemianthus callitrichoides require co2 to carpet if a part of it is emersed.
Its also known as pearl weed.
Cuba has smaller leaves and a bit narrower.
I have grown hc emersed and submersed it it loses some of its leaves but doesn t take forever to grow back.
The carpet of glossostigma in the picture below is grown using 150w metal halides hung 2 feet above the tank.
This video is of my little h.
In the submersed form it looks almost same as an emersed form with cushion like growth or low carpet.
It will carpet but the leaves are a totally different shape than dwarf baby tears hemianthus callitrichoides pictures below hemianthus micranthemoides giant baby tears pearlweed hm hemianthus callitrichoides dwarf baby tears hc hope that helps.
Mosses in particular have very different emersed structures and can be quite cool looking.
This light level is probably excessive.
Another two weeks and i expect it will be covered.