With previous batches of D. diadema I always separated the babies after their second or third molt because I had read that sometimes they can be cannibalistic at this stage and for a while until they get older. Most accounts say they are communal but I wanted to be safe. With my last batch I decided to see if I could keep them communally so I set up a large tank for a dozen of them. So far they are doing fine and I have noticed that those 12 seem to be larger and more robust than the ones I am raising separately. They are not really growing any faster as the molting schedules are pretty close but they just seem to be bigger at the same stage of development. Has anyone else noticed this. I seem to recall reading in Orin McMonigle's whipspiders and whipscorpions book that he mentions this but for the life of me I can't find my copy to confirm that this is where I read it.
My theory is that when they are together they may feel the need to eat more to compete for food or maybe they are just getting more food because subconsciously we are told that to keep animals together we need to keep them well fed so we offer more food. Like I said though, they are not really growing faster, just bigger. It may also be that by being kept alone they feel more stressed because they don't have security in numbers so some of the food they eat is burned up in being stressed while in groups they feel more secure so more energy can go into growth.
Its pretty cool seeing a dozen or so big fat babies on the backside of a piece of cork but they are outgrowing their tank so its time to upgrade. A pet shop I go to has a leaker corner pentagon tank that holds about 35 gallons so I may snag that and modify it to keep the group together.
My theory is that when they are together they may feel the need to eat more to compete for food or maybe they are just getting more food because subconsciously we are told that to keep animals together we need to keep them well fed so we offer more food. Like I said though, they are not really growing faster, just bigger. It may also be that by being kept alone they feel more stressed because they don't have security in numbers so some of the food they eat is burned up in being stressed while in groups they feel more secure so more energy can go into growth.
Its pretty cool seeing a dozen or so big fat babies on the backside of a piece of cork but they are outgrowing their tank so its time to upgrade. A pet shop I go to has a leaker corner pentagon tank that holds about 35 gallons so I may snag that and modify it to keep the group together.