I want my axolotls to get BIG!

I want my axolotls to get as big as they can get. I have 2 axolotls that are about 5-6 inches 9-10 months. 1male 1female I would be very happy if they reached 12inches. I know that tempurature matters. I'm thinkin 65-70 degrees should do the job right? I know axolotls can survive in colder temps and do well but dont get as big. maybe some advice from someone who has a giant axolotl would help. I've heard of axolotls getting as bif as 15inches! It'll be nice to get mine that size. So rite now i'm keeping those 2 in a 30 gallon tank and the temps never excedding 73 degrees and never gets lower than 60 degrees. They eat every 2 days salmon pellets. would this technique do the job?
I'm thinkin keeping them in warmer temps and they eat more they would grow more?

Ummm... how come you want them to grow big? Usually overfeeding an animal shortens its lifespan...

I am pretty sure genetics will play a fairly big part in what size your axolotl will grow to. The diet your axolotl receives during its life time too. My juveniles are now approx 6 inches in size and are just about 5 months old, They have been raised on brine shrimp, daphnia,bloodworm..various larvae and then onto chopped earthworm with now being occasionally topped up with amphibian pellets. Enviromental factors will also play a large part too i.e water qualities etc. . Temperatures do play a part on the developement of the young..I suspect by raising their metabolism, and this may not be for the best .
Whilst I appreciate guppies are no way related to axolotl, I have read that if they are kept at warmer temepratures their metabolism is increased that causes them to eat more, grow faster an reproduce earlier etc....but it also reduces their life expectancy.

I have 2 axolotls, one female about 7 - 8 inches who is a year old and a 10 month old male who is well over 12 inches and still growing.
I think the appetite of the axolotl will of course play a large part in their growth as the male eats literally a huge meal once a day (he gets angry otherwise and starts attacking his tank mate and throws stones around). Since i started feeding him locusts (stage 3 before they get their wings) he has had a major growth spurt. I have seen some huge ones whereby they have been fed predominantly on beef heart (just cut into strips and feed raw) or of course lambs liver. These are very fatty though and will cause a very fat axolotl as opposed to a healthy big axie. The advice i have found so far is to look out for rolls of fat on their legs, if they appear then it is time to alter the diet as a fat axolotl apparently doesn't live very long.
I dont know if you have been looking at those monster axolotls that appear on some websites whereby they look like a giant carp? I have seen that type at a zoo whereby they were well over a foot and a half and look like they could swallow a human hand. This is something that happens with age.
Could i ask why would you want huge axolotls? would healthy, happy normal sized axolotls not be better?

Besides from the things already mentioned (genetic bias, problems with overfeeding) you would also have to have enough space for a BIG Axolotl - and 30 gal. doesn't sound very big to me. The biggest Axolotls I know come out of ponds or very spacious tanks.
Also a temperature of 75 degrees is too much in my optinion - this will not make your Axolotl bigger but stressed. Water temperature has nothing to do with the final size of your Axolotl but with the growth rate and time it takes.

What is the hurry? Axolotls continue to grow as adults, keep them happy and see what happens. I've four axolotls, all from an April spawning. Two are 20cm (nearly 8 inches), the others are a lot smaller. They have rarely been above 20 degrees centigrade and are currently at 15 centigrade (under 60 F). They are still growing at about 1mm a week. I have seen big axolotls, they were old ones. Cool it and be patient. I have the suspicion that axolotls grow better if fed less more frequently - they are capable of snacking as well as gorging. Keep your pets cool and happy and in 2020 you may have a monster!

yea i'm not over feeding or anything. no real fatty foods just pelllets. I just want big healthy axolotls I'm not really pushing it. Just want to know how others kept their monster axolotls so I can mimic their ways alittle thats all. my axolotls health comes 1st . their hasnt been any signs of heat stress or any stress. actually the temps are all ways between 65 -70 degrees. I dont think theres anything wrong with wanting a big healthy axolotl is there?

no theres not.

Well your original post just seemed a little odd crestednewt. You only mentioned size in it for one thing, and not the health of your animal. Also at 73F (the max you said in your tank), you are already pushing the temp to the upper limit of what is suitable for your axolotl so I would really recommend not increasing the temperature further as you have suggested in your post. So my post was just aimed at finding out your motivation for wanting a large axolotl. My aim with pets is to have them as healthy as possible and whatever else follows is fine. So if I have a healthy axolotl that only ever grows to 25cm or whatever, I would be quite happy with that.

Anyway, as others have mentioned, I think if you keep your axolotl healthy, it will continue to grow. Anything beyond that designed to speed up growth such as overfeeding and keeping in a higher temperature is going to cause health problems and lower the lifespan of your axolotl. They can live for 12+ years and the older ones tend to be the large ones so you will have to be patient and hope your axolotl has the right genetics for large growth.

yea the temps are little high because i cant control the temps. I live in an upstairs apartment and the coolest room in my apatment fluxuates between 65-and 70 degrees. If i had a choice I would keepem at between 60 and 65 degrees.

Hi,

Have a look at www.axolotl.org it has good information on all aspects of axie keeping including best foods and tank cooling.

Best thing for getting a big healthy axie apart from genetics, is patience and time.

Good Luck