Thursday, 29 August 2013

CHARACTERISTICS OF AN IDEAL WATER FOR YOUR POND

1. It should be greenish or bluish in colour due to phytoplankton. Yellow or brown colour may indicate acid water. 2. It should be about neutral or slightly alkaline. Best pH range for fish production is 6.5-9.0. Acidic and alkaline death point for pond fish is pH 4 and 11 respectively. 3. It must contain enough dissolve oxygen above 4mg/l. At values of 3mg/l or less growth will slow down, fish may become susceptible to diseases. 4. It must not be muddy or turbid. Secchi disc visibility less than 25cm is not desirable (adequate range = 40-90cm). When Secchi disc is unavailable, the palm should be visible when hand is dipped in water except turbidity is caused by plankton bloom. 5. It must not have offensive odour 6. It must be free of pollutants e.g. oil films, detergents, heavy metals e.t.c.

No comments:

Post a Comment