Know Tech Environmental Inc.
Know Tech Environmental Inc.
A pH level between 7 and 8.4 should be maintained. Marine creatures do not like shifts in pH, since a one unit shift in pH represents a 10 fold change in hydrogen ion concentration.

The pH of natural sea water is usually very stable and ranges from 7.5 to 8.4. In re-circulation systems where seawater is reused, bio-filters that remove ammonia consume alkalinity. Therefore pH is always falling (more acidic) and the operator has to counter this. Addition of activated carbon to a bio-filter will help to maintain a pH level above 7.5 because it also inhibits a buildup of acid substances in the system. Its use has been found to reduce mortality by up to 10%.

Perhaps the best way to control pH is by adding carbonate to the system using an automatic dosing pump controlled by the CCP Minder – a planned option.

The critical control points, at which alarming occurs, is adjustable by the operator.

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