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when starting up a new filter or if you need to increase biological activity in your eco system
Stage 3: CTO carbon block
The effective balls will help remove ammonia and nitrite in the pond water resulting in healthy and crystal clear water
In soft water areas ponds can be prone to pH crashes due to low levels of carbonate alkalinity (KH)
Fish produce two kinds of waste
Philips 55watt UV UVC Bulb / Lamp Replacement pump when starting up a new55w double ended replacement UV bulb. Fits all major manufacturers with 36" fitting inc Kockney Koi, TMC etc Bulb should be changed every 6 12 months Measures 902mm from pin to pin PICKUP ONLY
