Our pond system is about 1,100 gallons and the main body of water has been in place for two months. I have not dechlorinated any water yet. The initial water was in the pond for 3 weeks before fish were added, aerated mechanically and in a 30' stream.
We experienced an ammonia spike a week or so ago due, in part, to plant fertilizer being back flushed into the pond while rearranging things. Today the feeder goldfish seem okay.
We replace 30 gallons a week due to evaporation. Usually a mix of rainwater and tap water. Due to the lack of rain (30% of normal) we are going to rely on tap water this summer. Chloramines are present in the system:
Do I need to worry about dechlorinating the top up?
We experienced an ammonia spike a week or so ago due, in part, to plant fertilizer being back flushed into the pond while rearranging things. Today the feeder goldfish seem okay.
We replace 30 gallons a week due to evaporation. Usually a mix of rainwater and tap water. Due to the lack of rain (30% of normal) we are going to rely on tap water this summer. Chloramines are present in the system:
The annual median chlorine residual in the Distribution System was 1.42 mg/L (Table 8). The lowest monthly median was in October and November (1.33 mg/L) and the maximum monthly median was in May (1.55 mg/L) (Figure 39).
Do I need to worry about dechlorinating the top up?