This is in Russian but you can get the gist of what they're doing and the quantities produced.
I might give that method a go too actually,thanks for that
My worry with adding them to a Moina culture was the water quality deteriorating much quicker but I think I will give that a try as well.
I think it is because Cladocerans (Daphnia, Moinia etc) filter particles from the water column by size, so very small individuals will get extra Bacteria, Rotifers & Protozoa etc generated by the worm culture.I thought @louis_last mentioned a beneficial relationship in that the Deri worms somehow generated food for the Moina.
That's exactly it - that just like infusorial snails they seem to convert solid foods into, and then pass in their waste, a lot of microorganisms that the moina can feed on.Hi all,
I think it is because Cladocerans (Daphnia, Moinia etc) filter particles from the water column by size, so very small individuals will get extra Bacteria, Rotifers & Protozoa etc generated by the worm culture.
I think the same applies to keeping a Ramshorn snail with the culture, as well as janitorial duties it will generate food organisms in the water column.
They definitely can, it just may be that they reproduce faster on grains - or even just that grain flour is cheaper than algae wafers. I've only tried oat flour so far with the ones alex sent me.Oh right - I’d read they could be fed on algae wafers and fish food - I figured that would be good as the snails could eat it too.
I am having a decent level of success on growing Chlorella with the dry salt ferts. It does seem to take longer to get a high density than with the Fish Mix, though I may simply not be adding enough ferts, but I'm happy the dry salts work to grow Chlorella just fine. I also tried seeding a 2 litre bottle filled with nothing but tap water and got a decent amount of Chlorella growth just off that, so my tap water obviously contains a fair amount of ferts also.
I tried growing it with Tropica specialized and miracle grow slow release pellets but without great results. It seemed to grow a bit but was a much more pale and never got to very high cell densities.
What I'm doing at the moment is growing in strong fish mix which seems to result in an obscenely high cell density, then once the 5L bottle is fully populated I turn off the air and don't agitate it at all for 48 hours and all the chlorella settles to the bottom then I just siphon out all the brown tinted water, refill with fresh clean tap and start the air again. All the chlorella goes back into suspension but without any wierd residual water chemistry and I then feed from that bottle while the other one is growing.
[QUOTE="Wookii, post: 646335, member: 18929"]
My Moina tank is still running, without any Moina in it. I now have a thick layer of what I can only assume is Chlorella on the base of the tank - and the water is still pea soup green. I'm starting to think my issue with the tank previously was two fold - firstly I was inadvertently adding ammonia for the Chlorella/Fish mix culture that hadn't been used up by the Chlorella, and that caused the death of the Moina and the snails to try and exit the tank, plus a possible bacteria bloom. However I also think that the combination of very high light, and my tap water for water changes, was causing chlorella to bloom in the tank at the same time - obviously faster than the Moina could consume it.
The sponge filter has been running since my last update anyway, and I have no more ammonia, and the snails seem happy enough. So I've now hatched another batch of moina from the cysts I have, in a one litre shallow container, and I'm feeding them up on the Chlorella cultures I have, and they seem to be growing and breeding well, so I'm going to introduce most of them back into the Moina tank and see how they get on. In theory I shouldn't need to fed them until their population reaches the point that they eat up all the Chlorella that's already in the tank and clear the water (?).
Ceriodaphnia are still very much outcompeting the moina in my main culture and I still can't figure out why because I've never been able to get them to really take off in their own cultures. I've started a seperate clean moina culture that isn't contaminated with ceriodaphnia now.