Best Pond Koi Net and Quarantine Tub Buying Guide: SG Pricing
The two pieces of kit every koi keeper underestimates — until the day a parasite arrives or a fish jumps out — are the koi net and the quarantine tub. Skimping on either guarantees damaged fish and contaminated ponds within the first 18 months. The best pond koi net quarantine selection below from Gensou Aquascaping at 5 Everton Park covers the three net classes worth owning and the four quarantine tub options used by serious Singapore keepers, with honest SGD pricing for each.
Net Class One: Koi Sock Nets
Koi sock nets are deep cylindrical mesh tubes designed to envelope a fish without folding fins or pressing scales. Length 50-100cm, with 60-80cm being the most useful range for typical home pond koi. Sock nets work for catching, holding for inspection, and transferring fish without bowl interaction. Quality sock nets from brands like Ozark, Spindrift or Saiki cost SGD 80-180 from the pond equipment range.
Net Class Two: Pan Nets
Pan nets are flat-bottomed shallow nets used to scoop or guide koi rather than capture. The flat bottom prevents the cone-folding stress that traditional nets cause. Pan nets are particularly useful for moving fish between tub and pond without lifting fully out of water. Sizes 60-90cm diameter, prices SGD 60-140. Less essential than a sock net for the home keeper but invaluable for larger collections.
Net Class Three: Koi Bowls
Not strictly nets but always paired with them — the koi bowl is the broad shallow vessel used to hold a fish for visual inspection. Sizes 60-100cm diameter, 15-25cm depth. Plastic bowls in white or light blue from Pond Guru, Saiki and similar specialty brands cost SGD 90-280. The white interior makes parasite spots, ulcers and fin damage visible. Avoid using a household bucket as a substitute — fins and scales catch on rough rims.
Net Sizing for Your Koi
Match net size to fish size. Koi up to 30cm: 50-60cm sock net is sufficient. Koi 30-50cm: 70-80cm sock. Koi above 50cm: 90-100cm sock plus a pan net. Owning two sizes covers most situations — one 60cm for routine inspection and one 80cm for adult koi catching. Spending SGD 250 on the right two nets prevents the tail tears and scale loss that come from forcing a big koi into a small net.
Quarantine Tub Option One: 1000L Pond Guru Oval
The Pond Guru 1000L oval tub is the gold-standard purpose-built quarantine vessel — UV-stabilised, fish-safe, 1.8m × 1.2m × 0.7m. Holds koi up to 60cm comfortably for 4-6 week quarantine periods. SGD 380-560 from the pond equipment range. Easy to drain, easy to clean, and stable enough for treatment at full salinity (0.5 per cent salt) without leaching.
Quarantine Tub Option Two: 2m × 2m Tarp Tub
The DIY tarp tub uses a 2m × 2m blue food-grade PVC tarp suspended on a galvanised pipe frame, holding 1,200-1,800L. Setup cost SGD 150-280 (tarp plus frame plus fittings). Less attractive than purpose-built tubs but matches their performance. Easy to dismantle when not in use — useful for keepers without permanent quarantine space.
Quarantine Tub Option Three: IBC Tank Conversion
An intermediate bulk container (IBC) tank, food-grade only, holds 640-1,000L and converts into a quarantine vessel by cutting the top off. Cost: SGD 100-180 for the IBC plus SGD 30-60 for cutting and finishing. The cube shape is less natural for koi behaviour but works for parasite treatment cycles. Source food-grade IBCs from used-equipment dealers; reject any that have held chemicals.
Quarantine Tub Option Four: Hard Plastic Pre-Form
Pre-formed pond shells (rectangular, 800-1,500L) from Atlantis or Hozelock can serve as quarantine tubs. Cost SGD 280-650. Heavier and more rigid than tarp options, more attractive than IBCs. The trade-off: harder to drain and store when not in use. Best for keepers with permanent quarantine space and frequent koi turnover.
Why Quarantine Matters
New koi carry parasites — flukes, trichodina, costia — at sub-clinical levels even from reputable importers. Adding a new koi directly to your main pond exposes the entire stocked population. A 4-week quarantine in a separate tub at 0.3 per cent salt with prophylactic praziquantel kills incoming parasites before they reach your pond. The water care treatment range stocks praziquantel and salt for quarantine protocols.
Quarantine Equipment Pack and Buying Priority
Beyond the tub itself, quarantine needs a small sponge filter on an air pump, heater (rarely needed in Singapore but useful for some treatments), water test kit, and dechlorinator dosed for the new water — total quarantine setup adds SGD 250-450 on top of the tub. Run the filter through new media for 4-7 days before fish arrive to establish bacterial culture. If budget is tight, prioritise a koi sock net (SGD 80-150) plus a single tarp tub (SGD 150-280) on day one; add koi bowl and pan net by month six, and a permanent purpose-built quarantine tub by year two if your collection grows. The full kit costs SGD 600-1,200 and pays back across the entire life of the hobby. Both nets and tubs degrade under tropical sun, so store nets dry and hung in shade and store tubs upside down or covered.
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5 Everton Park #01-34B, Singapore 080005 · Open daily 11am – 8pm
