Goodeids outdoors?

mandrade posted: 29.06.2011

Dear friends,

With some free time available, since roughly a week ago, I had finally the chance to publish at my web page the results of my latest experiment on temperature logging, revealed to you last January.
The first results ( from January 2011 just last weekend ) had surprised even me.
Besides the obvious differences of thermal behaviour between the two fish ponds under observation, please note that the little one ( 2,000 litres ), built to receive a single Goodeid species in middle August, 2009, is much more effective than expected in order to keep constant temperatures inside some species limits. Well, its important to add that I am not only basing this impression on the winter results but on the first summer results as well ( later you’ll be able to notice what is going on now on the 2011 second trimester report).
I’ll write soon an article about the progress on temperature manage with a few very simple strategies applied notably on the specific localization  of this small garden fish pond, it’s proportions and some undemanding procedures in order to cooling down the water during the present hotter season.
Allow me invite you to have a look at -  http://www.viviparos.com/Aquariofilia/logen.htm for the first impressions and comments about the 2011 first trimester.
Please read the introduction page as well, if you don’t mind.
Take into account that we have experienced this winter an exceptional long severe cold episode during the last days of January and early February, when there were exceptionally low values of minimum air temperatures ( please read - exceptional weather occurrences on the same period of time ).
Even so, this new temperature logging every 60 minutes is a fantastic help to start a new era… a completely innovative and further precise awareness of the real thermal behaviour of both garden fish ponds.
Since last month, an extra logging device was installed at the bottom of the larger garden fish pond to estimate concluding results on the two main question :

. Is 1 metre deep enough to cause a temperature divergence regarding the surface ?

. Is there any “ temperature pocket “ near the bottom ?

Now it’s even possible to be acquainted not only with when but also with how long a certain temperature was record during the 3 months period under observation.
Even taking in to consideration that a single year doesn’t give us a precise idea of the local climate ( specially the knowledge about rare extreme weather events ), I  sincerely hope that from now on, with such information, some of you can be so kind and help me recommend Goodeid species that can be comfortable kept under such thermal conditions, as this was a fairly “ standard “ example for January, February and March, according to my old records ( on the ancient system ) since January 1985.
I believe there is a potential number of species to try with no harm or temperature stress to the fish, but as my short experience it is also reduced to a small number of Goodeids, I am looking for assistance in this group of experts ( especially guidance from some scientists and hobbyists who have a considerable contact with the local climate conditions in the wild on the provenience of such species in the Mexican Plateau ).

Kindest regards

Miguel

Grigri posted: 06.07.2011

Impressive results Miguel ! it's a really interesting tool you have !
It would be really interesting to install some of them in Mexican biotops too !

see you soon
Alain