What should fish tank temp be?

Question

what temp should my tank be? i have seven guppy's two otos two cardinal tetras and four platies in my 20 gallon tank.

Answer 1

72 to 80 f

Answer 2

around 70 fahrenheit.

Answer 3

The best temp with the cardinals in there would be about 76-78 F.You really should get at least 4 more cardinal as these are schooling fish.

Answer 4

I think it's no lower then 72 no higher then 75. I have a fish tank thermometer that has a shaded area that you can't let the temp get above or below. I think you can get them at a petstore for $5 or so.  

Answer 5

Wow you have two many fish for that tank and need to upgrade fast but try to keep the temp at 78 to 80 degrees