Where is the best direction to have the outlet from the power filter pointing?
At the moment it is pointing towards the center of the tank but I have been told to direct it upwards !as this would stop the fish gasping for air!
I have sand on the floor of the tank but that isn't being disturbed by the jet.
Also while I'm here we are getting a small amount of green algy showing under the sand(against the glass) is this normal? if not what would be the best method of removal
see pic (note extreme close up lol)

At the moment it is pointing towards the center of the tank but I have been told to direct it upwards !as this would stop the fish gasping for air!
I have sand on the floor of the tank but that isn't being disturbed by the jet.
Also while I'm here we are getting a small amount of green algy showing under the sand(against the glass) is this normal? if not what would be the best method of removal
see pic (note extreme close up lol)
