After Fish less cycle in 21 days of my 8 gallon tank and I brought 3 gold barb and 2 Red Eye tetra. And I ask in this forum how it is ?? People told me that both are not good for 8 gallon tank. So i go to my LFS change them with beta fish. Then after putting him in my tank I check my water parameter it was 0 ammonia and 10 nitrite. So I change water 50 - 70 % and add some prime water. Then today afternoon when I check parameter it is okay 0 ammonia and 0 nitrite.
But beta fish behavior is something wired he is swimming good some and some time go bottom of the tank seat for some seconds and then again start swimming . and there is one corner where is my airstone and water heater every time it goes there and seat for a while.
Sometime I think may be here in kuwait temperature is getting cool and so water is also cold may be the reason. Some body advice me how much temprature should put.