Tank turnover and Oxygen content at night
Posted: Thu Jan 29, 2009 10:03 pm
Ok I have a tank around 100 litres which is going to be exclusively used for a few Zebra's.
I have two Fluval 3 internal filters which each give a 700 litre turnover, and I have an Aquaclear 20 Powerhead (just used for waterflow, no air)which gives about 500 litres per hour and an Aquaclear 30 Powerhead which gives about 550-600 (with air being pumped into the tank).
Adding this up equals roughly 2400 litres per hour tank turnover. Thats 24x. Is that too much? The way I have postioned the filters and pumps ensures that there are very few 'dead spots' in the tank where food may settle.
Second question is... at night, can the Aquaclear 30 Powerhead be turned off? Its the one that pumps the air into the tank, but it makes a hell of a noise and its in my bedroom. In Rio Xingu, would oxygen content lower at night at all? The tank flow will still be 1900 liters an hour with the rest of the stuff, but this is the only powerhead which is giving off loads of bubbles.
Thanks
I have two Fluval 3 internal filters which each give a 700 litre turnover, and I have an Aquaclear 20 Powerhead (just used for waterflow, no air)which gives about 500 litres per hour and an Aquaclear 30 Powerhead which gives about 550-600 (with air being pumped into the tank).
Adding this up equals roughly 2400 litres per hour tank turnover. Thats 24x. Is that too much? The way I have postioned the filters and pumps ensures that there are very few 'dead spots' in the tank where food may settle.
Second question is... at night, can the Aquaclear 30 Powerhead be turned off? Its the one that pumps the air into the tank, but it makes a hell of a noise and its in my bedroom. In Rio Xingu, would oxygen content lower at night at all? The tank flow will still be 1900 liters an hour with the rest of the stuff, but this is the only powerhead which is giving off loads of bubbles.
Thanks