donatkin
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How many females should I keep with a male?
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Sex ratio on marms
- Thread starter donatkin
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Blackbun
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Please forgive my ignorance donatkin, but what exactly are marms?
I've been very successful with marbled newts over the years and like to place two males with one female in the breeding tank. I have found that males make more of an effort if they have competition for the female. However, nothing is ever straightforward and I keep a keen eye on males interrupting what appears to be a successful courtship leading to spermatophore deposition and then uptake. I find it important that the substrate is suitable and there is room for the two animals with out interference from weeds etc. But even before we get to this stage, it is important that the adults have been 'prepared' through the year eg temperature cycle, feeding etc.
I've been very successful with marbled newts over the years and like to place two males with one female in the breeding tank. I have found that males make more of an effort if they have competition for the female. However, nothing is ever straightforward and I keep a keen eye on males interrupting what appears to be a successful courtship leading to spermatophore deposition and then uptake. I find it important that the substrate is suitable and there is room for the two animals with out interference from weeds etc. But even before we get to this stage, it is important that the adults have been 'prepared' through the year eg temperature cycle, feeding etc.
otolith
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Last year I had a 1.4 group and had pretty low fertility rate with eggs (~25%). This year I have two additional males and am hoping for better results. They have been tail fanning for the past few weeks and I have not found the males to be territorial or aggressive with each other. A male heavy group can be a problem, ie. 4.1. The constant courting can really stress out the females if they can't get a break.
I have 3.3 in a 50 gallon tank and they all do great. The majority of the group stayed aquatic during the summer. I like having close to a 1.1 or 1.2 ratio with most Triturus species.
I have 3.3 in a 50 gallon tank and they all do great. The majority of the group stayed aquatic during the summer. I like having close to a 1.1 or 1.2 ratio with most Triturus species.
"Please forgive my ignorance donatkin, but what exactly are marms? "
It's just an abbreviation of marmoratus.
It's just an abbreviation of marmoratus.
The best sex ratio depends on what you ant to do with these animals.
If you want to obtain a lot of young animals each year (to sell them?), a ratio 1 male for 2 females is often cited.
If your aim is keeping a captive strain for a long time, you'd better keep several couples separately, keep only a few larvae (same number by couple), so that each breeding adult has the same reproductive success.
If you want to obtain a lot of young animals each year (to sell them?), a ratio 1 male for 2 females is often cited.
If your aim is keeping a captive strain for a long time, you'd better keep several couples separately, keep only a few larvae (same number by couple), so that each breeding adult has the same reproductive success.
Blackbun
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Thank you for clarifying 'marms'.
I tend to go with JM29's idea of several groups set up in different tanks to ensure a good number of large and healthy youngsters from a range of animals thus increasing the variety in the gene pool. What I also think is important is the water temperature. I use an aquarium heater set between 19 and 22C. That's served me well though I'm sure other people have success with their own method.
I tend to go with JM29's idea of several groups set up in different tanks to ensure a good number of large and healthy youngsters from a range of animals thus increasing the variety in the gene pool. What I also think is important is the water temperature. I use an aquarium heater set between 19 and 22C. That's served me well though I'm sure other people have success with their own method.
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Clareclare:Would Chinese fire belly newts be more or less inclined towards an aquatic eft set up versus Japanese . I'm raising them and have abandoned the terrarium at about 5 months old and switched to the aquatic setups you describe. I'm wondering if I could do this as soon as they morph?+1
Clareclare:
Would Chinese fire belly newts be more or less inclined towards an aquatic eft set up versus...
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