I got my gorgeous betta 3 days ago - he is in a 13 litre (approx. 3.5 US gallons) tank with an undergravel air pump driven filter and a 25 watt heater that has an in-built thermostat. There is also a silk plant in the tank and he is fed TetraBetta flake food.
When I first put him into the tank he was swimming around fine, but for the past 2 days he just sits on the bottom of the tank, very listless and it's worrying me! When I put food in he will swim up and eat it, and every now and then he will swim around the tank.
I noticed the other day that the temp of the tank (I have a strip thermometer) was about 21 degress C (about 71 deg F) even though the heater was set to 26 deg C - so I put it down to the fact that it is so bloody cold in my flat. I have no turned the heater up and the thermometer is reading 24-25 deg C. However Hikaru is still listless!
I was planning on doing a 50% water change tomorrow to see if that helps - unfortunately I can't give any parameters as I don't have a testing kit yet, am going to buy one tomorrow. Another thing is I have noticed pale yellow parts on his face and head - I'm not sure if this is velvet or if it is his natural irridescence???
Can anybody help me with this - I would very much appreciate any advice! Am also going to the shop where I bought him from tomorrow to ask for advice and to pick up testing kit and salt!
Thanks in advance guys - and hopefully my little Hikaru will be ok