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Re: Water Chemistry and daphnia nets
Get as fine a mesh aquarium net as you can for harvesting daphnia. Some
cities have no shops with fine meshed nets. In that case order a bunch from
somebody like That Fish Place www.thatfishplace.com . You may need their
catalogue. I didn't find the web site too descriptive.
Brine shrimp nets are too fine. Collecting nets could be long handled
landing nets. You would have to replace or insert a finer mesh. Daphnia can
suffocate so don't make them too deep. If harvesting from a pond take only
what you can get home alive unless you are prepared to freeze a lot in
plastic bags. (In this weather take an ice chest and apply the ice to the
collecting buckets. Collecting later in the day will probably net more
daphnia which have risen to the surface for O2.)
There is something to be said for freezing them however.
I prefer ambling out in the backyard between the wood pile and berry bushes
(a rare case of discretion) and harvesting from a domestic culture. The
drive is shorter. The risks fewer - although surprises still show up and
must be watched for.
All the best!
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