Circulation will evenly distribute nutrients making them available for plants and bacteria. Aim for a circulation between 5-8 x of the tank volume per hour depending on plants grown and fish kept. Some prefer stronger currents while others weaker ones. Some aquatic gardeners use circulation of up to 10 x the tank volume per hour but they do reduce the water flow by using very long submerged spray bars which should be placed just below the surface.
Surface Agitation will insure sufficient gas exchange and will prevent the surface film from forming. Even though plants willd extra O2 via the surface agitation.
One should bear in mind that Oxygen is one of the most important electron acceptors involved in animal and bacterial metabolism provide lots of O2 through photosynthesis especially in CO2 injected systems it can’t hurt to ad.
No comments:
Post a Comment