I've been watching mine (I have a 60cm tank without any fish at the moment, but it has a lot of crustaceans) and I've noticed that when they swim any distance they swim upside down.Crangonyx pseudogracilis
Hi all, I've been watching mine (I have a 60cm tank without any fish at the moment, but it has a lot of crustaceans) and I've noticed that when they swim any distance that they swim upside down.
cheers Darrel
It is interesting, the tank now has a bloom of Daphnia, with plenty of Cyclops and I can see Lumbriculus (some of which are in the floating plant roots, rather than the substrate) Crangonyx and Asellus all a lot more visible than they are normally when fish are present.they swim quite often when there is no fish.
Hi all, It is interesting, the tank now has a bloom of Daphnia, with plenty of Cyclops and I can see Lumbriculus (some of which are in the floating plant roots, rather than the substrate) Crangonyx and Asellus all a lot more visible than they are normally when fish are present.
cheers Darrel
I don't know, but I would expect they are fairly CO2 tolerant.So the question is - daphnias do not tolerate co2?
Hi all, I don't know, but I would expect they are fairly CO2 tolerant.
A couple of thoughts is that they don't do well in soft water (or below pH7). Daphnia magna doesn't survive in my tanks, but other species are OK.
Also if there are fine bubbles (of any gas) in the tank these tend to collect under the Daphnia's carapace, stranding them on the surface.
cheers Darrel
Not at all sure, they are very sensitive to pesticides (even more so than shrimps).should be same water more or less...