Join Date: Jun 2007
Location: Tsawwassen, BC, Canada
K, I'll re-type this for like the umpteenth time, and I'm going to be as simple as I can, haha:
-Inflatable kiddie pool or similar container (more surface area is worth more than the depth of the container as more gas/oxygen exchange happens).
-Fill with aged aquarium water (when doing water changes, dump the old aquarium water in the pool). Do this until the kiddie-pool is 2/3rds or more full.
- Throw a couple lettuce leaves in there. Let sit for a week or more
-Top off with FRESH DECHLORED water.
-Aquire starter culture of Daphnia. Float and aclimatize the culture as you would fish (they are aquatic animals, afterall)
-Release the culture into the pool
-Use brineshrimp net to culture them, or use nets with different size mesh to filter out the adults from the babies.
-Culture about 1/3rd when you can to feed to fish (extra daphnia in the aquarium will not foul water)
Do not over-feed. DO NOT. EVER. I do not suggest feeding with with yeast. Some people do, but it's sketch and it takes a while to get the hang of how much to feed them, and you can easily over feed. Just throw in the odd lettuce leaf now and again. This will creat infusoria that the daphnia feed on.
-Under harvesting can result in a population crash.
-The pool is suggest to recieve half shade/sun throught out the day.
-Infusoria requires sunlight to grow/develop from the lettuce
-Sunlight equals warmth
- Warmer water equals less oxygen
- See why the surface area is more important than depth?
It really is hard to mess up with Daphnia. All you have to do is top off the evaporating water with your old aquarium water from water changes, with the odd freshwater top off.
When putting in the water, try to be very very gentle with it. If you simply dump it into the water in the pool, you'll creat tonnes of tiny bubbles. These bubbles can get trapped under the carapace of the daphnia, causing them to be stranded at the top of the water where they can die easily.
It is HIGHLY suggested that you divide up your starter culture, or purchase two cultures and keep them seperate. If one should fail or crash for whatever reason, you will have a back up. Even if you split up one culture and it the two pools look like there are hardly anything in it. Give it a week or two and you'll have thousands of daphnia.
Daphia are very very very easy to keep as long as you don't over do it.
KISS- Keep it simple, stupid.
I pretty much feel that what I type should be added to a sticky, haha. I think I've typed the above about ten or so times!
I don't mind though, as I was scared of my daphnia the first time.
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"You think you have tomorrow, but when tomorrow comes it's not tomorrow; it's now- and that's all you have" - Marc Johnson
Ehei-Pimpfen 276 yo!