To any of you guys that picked this up and are now growing it:
Did you notice a big difference in teh new growth compared to the old growth when you first bought it?
In my case the leaves are much brighter green,( which is to be expected since the moss wasnt doing too great in the tanks at petco IMO) and surprisingly the leaves on the new fronds are much smaller. Im not sure if the leaves will elongate with age. Also , in tanks without strong current the moss grows more multidirectional and ive noticed less branching of the new fronds.
Mine seems to be stagnant...it isn't dead but it really hasn't taken off yet. It was in a horrible state when I got it. But the few fronds that are growing are certainly greener, and somewhat "leggy" - like mini-stems almost...that is my observation so far with it.
I might move it into a higher light tank with co2 (not excel) and see how it does.
I haven't seen "real" willow moss for ages, but I think it is somewhere between these two. Here's a picture of this "Petco moss" with my Fontinalis antipyretica spp. (propably the gigantea, since... it's gigantic, but the identification isn't 100% certain). I think the best way to get this Petco moss identified is to send it to a moss specialist. I could volunteer to try to do that after mine has grown for a few weeks in the aquarium.
Well, it hasn't been identified 100% sure, so it might be anything, but the best guess is willow moss subspecies. It is from Germany and is a true aquatic moss, so I'll try to check if there's any aquatic Plagiomnium species in Germany that grows to over 50 cm long.
i just bought some and mine is fairly healthy. Almost all green. The first thing I thought is willow moss. The portion is HUGE. Im going to take a pic and post a lil later.
I raise my sword in the air in the battle against clado. I have been beaten in this battle but the war is not over. As my wounds heal I amass another army, an army with many legs, an army of Amano's......
I thrust my tridant into the mass of medusa like staghorn. I am wounded but I refuse to take a knee.
This Petco moss has now been identified and it is, surprisingly, stringy moss, Leptodictyum riparium. And the big one in the picture really is Fontinalis antipyretica var. gigantea. Here's a thread about the ID:s : http://www.killies.com/forum/viewtopic.php?t=3076