Clam gorwth rates
- Thread starter ILikeFish
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critterkeeper
New member
Expedition, how in the heck did you get a maxima to grow 2" in 3 months???
That's about 17mm a month, which would be almost twice the maximum rate of a gigas - the fastest growing species.
Are you dosing DIN?
That's about 17mm a month, which would be almost twice the maximum rate of a gigas - the fastest growing species.
Are you dosing DIN?
critterkeeper
New member
Croceas grow at an average of 1 to 2mm per month in the wild where they get full sunlight and all the phyto they want. That's a maximum of about an inch per year. 1/4 to 1/2 inch per year is typically in a tank.
Maxima can grow at an average max rate of 4mm per month in the wild (maybe 2 inches per year at best)
Derasa - 6.5mm (3")
Squamosa - 7mm (3.3")
Gigas - 10mm (4.7")
These are averages, so there will be some inidividuals that grow a little faster or slower, but these are also in the wild under sunlight.
The numbers for crocea, maxima, and derasa came from Hart et al. (1998), for squamosa came from Foyle et al. (1997), for gigas came from Crawford et al. (1988) and Bell et al. (1997)
Maxima can grow at an average max rate of 4mm per month in the wild (maybe 2 inches per year at best)
Derasa - 6.5mm (3")
Squamosa - 7mm (3.3")
Gigas - 10mm (4.7")
These are averages, so there will be some inidividuals that grow a little faster or slower, but these are also in the wild under sunlight.
The numbers for crocea, maxima, and derasa came from Hart et al. (1998), for squamosa came from Foyle et al. (1997), for gigas came from Crawford et al. (1988) and Bell et al. (1997)
critterkeeper
New member
Let me emphasize that these are average MAXIMUM rates, too. Which is why rates in aquariums are typically significantly lower, unless you decide to start dosing DIN and keep them under exceptionally bright lighting (like 1000w halides)
