10-17-2012, 02:53 PM
Join Date: Mar 2006
Location: Brunswick, Germany
iTrader Positive Rating: 100%
| | Re: Tell me what I bought
OK, IMO it's Egeria najas: https://www.aquaticplantcentral.com/f...ils.php?id=126
It's similar to Egeria densa but has narrower leaves with conspicuous teeth. Hydrilla verticillata has similar leaves but its internodes (stem parts between the leaves) of older stems are mostly longer than the leaves. In E. najas and E. densa shorter than the leaves.
I agree with totziens, the other plant is Purple Waffle, some variant of Hemigraphis (colorata?), a tropical ornamental. I also have only the info that it isn't suitable for tanks, but it may also be good to document what happens with a terrestrial plant like this when drowned.
Favorable conditions for aquatics - much light, CO2, O2, good current, nutrient supply - surely prolong the survival of terrestrial plants under water, too. And there's no clear boundary between aquatic and non-aquatic. But I'd say, a plant is suitable for tanks if it really increases in living biomass underwater, even if it does it very slowly.
Last edited by miremonster; 10-17-2012 at 03:04 PM..