Koi pond design & filtration
Koi forum UK threads discuss pond volume per fish, bottom drains, bead filters, moving-bed bio and pump sizing for heavy waste loads. Members share upgrade paths when fish outgrow first ponds.
Link your build thread to pond calculators and pump guides so others can sanity-check turnover and head height before you buy equipment.
Koi health, quarantine & parasites
Health posts should include water tests, pond temperature, behaviour changes and clear photos. Quarantine setup threads help before introducing new koi — reducing outbreaks in established ponds.
Common topics include flukes, ulcers, anchor worm and post-winter weakness. Always note what treatments are legal and available in the UK.
Feeding, growth & water quality
Feeding schedules change with temperature. Members document protein levels, wheatgerm in autumn and when to stop feeding near winter. Poor water quality often precedes health issues — test ammonia, nitrite and nitrate alongside fish checks.
Winter care for UK koi ponds
Winter threads cover aeration, de-icers, cover nets and how deep ponds should be in frost-prone areas. UK regional differences matter — share your county or typical lows for relevant advice.