I have a nice daphnia farm going, and was thinking how to get my shrimp to eat them. When they are bouncing around the shrimp can't seem to catch them, what if I shocked the daphnia with a blast of hot water to kill them, and then drop them in the tank? Would shrimp be able to crack the daphnia open and eat them, or is there no point to this?
9am53
Wouldn't that be like feeding chickens to cows?
I thought most (small, cute) shrimp are vegetarians (in nature at least). While they might be able to eat them, I don't see the point.
What shrimp are we talking about?
I thought most (small, cute) shrimp are vegetarians (in nature at least). While they might be able to eat them, I don't see the point.
What shrimp are we talking about?
Shrimps are scavengers. They'll eat anything. Think of them as omnivorous vultures 
They will eat the daphnia but only if it's dead.
They will eat the daphnia but only if it's dead.
cold water works just as well to shock daphnia and will not 'cook' the good stuff out of them.
I gathered my daphnia from water that is at 4 degrees celcius...and they are in 10 degree water in my basement...so I think even warm water is more likely to kill them than cold water.
oh, I must have missed that one...
I gathered them from my work, put them into a 10 gallon tank, filled it with water from the river in my back yard, put in a diy sponge filter and thats all I did...as far as I know the daphnia (all females) have babies like every 8 days or so, and there are like 25-30 babies in each brood. I just change about a liter of water ever day or 2 with water from my shrimp tank to keep the water somewhat clean, and feed mostly yeast, some spirulina and mushed up peas and paprika. I have a tank full of likely tens of thousands so I have to keep throwing them out as they clear the water up too fast...
I gathered them from my work, put them into a 10 gallon tank, filled it with water from the river in my back yard, put in a diy sponge filter and thats all I did...as far as I know the daphnia (all females) have babies like every 8 days or so, and there are like 25-30 babies in each brood. I just change about a liter of water ever day or 2 with water from my shrimp tank to keep the water somewhat clean, and feed mostly yeast, some spirulina and mushed up peas and paprika. I have a tank full of likely tens of thousands so I have to keep throwing them out as they clear the water up too fast...
btw, if you have a little quarantine tank you might want to start growing them...it's actually fun!
Frequent water changes seem to be a big factor in avoiding population crashes. I think many overfeed also. Sometimes other copepods can overrun your culture also.
Mine usualy end up becoming ostracod(seed shrimp) cultures as they are less picky about what they eat and will breed well even in old water (tend to out compete the daphinia once the green water is gone). in my opinion way easier to culture.
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