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20L Desktop Daphnia Tank

RickyV

Member
Joined
8 Nov 2022
Messages
185
Location
Texas
I have recently been bitten by the live food culturing bug and am currently mostly focused on daphnia. I have the outdoor Daphnia culture connected to larger system? But I decided to make an indoor culture to closely observe them in a more stable environment where I can experiment a little.

The tank is 20L. I added a small 3W pump covered in a 180 micron mesh filter bag to keep daphnia from getting sucked in. I have a little valve to reduce the flow if it does end up trapping daphnia, but it seems to be working well now. The pump brings water up to a tray filled with gravel, K1 media and some plants for nutrient removal. 20241113_111132.jpg
I added a thick layer of leaf litter to act as a slowly decomposing food source. Though it may have been too much as I am starting to see dead daphnia at the bottom. But in time the filter should begin to really help.

The daphnia tank has been a bit distracting however, I find myself looking at it much more than the reef tank across from it!20241113_111451.jpg

Here is a short video of the setup. Most of the daphnia are hanging out at the surface. Unsure if it is due to poor water quality or if they are consuming the biofilm at the surface.
 
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