Acting Funny....

[dizzyenglish]

Morning,

Just a quick one. Honest!

My tank has been on the go since the beginning of Feb, so whilst it isn't the most mature one around it isn't spanking new. I tested all the levels about 3weeks ago because the water went really cloudy overnight almost, and they were all fine. So i did a water change, cleaned gravel etc and bingo, lovely crystal clear.

It has stayed pretty much clear but the fish are all (bar the 3 sharks, 2 yoyo's and a cory) are all swimming really close to the top. They aren't there permanantly but more so when the light is on.

At first i thought it was maybe connected to the really warm weather so left the light off for longer periods, but now it's gone cooler i've started leaving it on again and nothing has changed.

I'm really not sure what else it could be. Any ideas? Also my Plec is doing a mad swan dive on a regular basis- it'll be lovely and quiet and then you'll just hear a loud splosh and it'll be him shooting from the bottom to the top and back again!

Thanks in advance!

D x

 

[Miss Wiggle]

probably not enough oxygen in the tank, try increasing the aeration by either putting your filter inlet at the top of the water so there's a lot of movement at the surface or put in an air stone