proper temperature for rays

[hereticlosmorte]

what species you keeping

retics

 

[twilight zone]

My friend that breed the Motoros keep the temperature at low to mid 70's. He feeds them pellets mainly and able to breed them. His max is 74 degrees F. Even the new born pups feed really well at that temperature. I personally think a little higher temperature and a more varied diet would be better.

 

[sponger_2]

i keep my tank at 79. i have marbles, hystrix, and a flower.

 

[Zoodiver]

Actually this is not so. Water temp is often much lower, depending on the rain.
water temp can vary up to 10+F between night and day, between 70 and 82.
Night/day water temp differences are actually larger than seasonal temperature differences.
Water stratifies in temperature layers, so while the surface may warm up during the day the bottom, where rays live, tends to stay cool, depending on depth of course. When it rains the temp drops fast.
It can get quite chilly there at night. much of the water is covered by forest canopy so doesn't get the radiation that you might imagine. In the flood season nearly all of the water is under the forest canopy and stays cool 24/7
Xingu Indians actually hang their hammocks over camp fires at night to keep warm!
In the drier season sometimes oxbow lakes are formed as river levels drop, and these can become much warmer, this kills stranded fish as oxygen levels deplete, and then they often dry out all together.

This.


One thing to consider is that bumping up temps just to get them growing faster can also lead to physical problems in the early developmental stages of life. I know it's fun to make the grow into what 'we' want, but 'we' also need to realize that they need to be kept as naturally as possible. I see a lot of people freak out over a few degrees temp difference, when in reality, these Amazon rays are seeing big swings naturally.

Another thing to consider is disolved oxygen levels in warmer water. I've seen several people post over the years about breath rates. Warm water takes more aggitation than cooler water to maintain the same DO level. Low Do means you are making your animals work harder to breathe and in turn adding that element of stress they don't really need.

 

[Tor-Eriik]

I keep my rays at 80-82 range, motoro, yepezi and peru "flower". They all seem happy with that. Somethimes they even get up to 84. 90 seems VERY high to me.

 

[motoro magic]

I keep my rays @ 80-82 with no problems,water is well oxgenated with 4 large air stones and plenty of surface movement.