Bring your cylinder for an instant top-up.

1. System and Control Engineering
   Blk 22 Boon Keng Rd
   #01-23
   Aka “Bioplast”. Uncle Tan can also service conventional aquarium chillers. Their original business is aircon installer. May not be familiar with mini chillers that use Peltier tech.
2. LFS Aquarium
   Blk 328 Clementi Ave 2
   #01-186
3. Lim Yew Siong Pte. Ltd.
   Blk 22 Woodlands Link
   #02-66
   Industrial gas supplier. Professional top-up service, among the best prices. Access by car is recommended. Can perform hydrostatic tests for cylinders (drop and collect later with official report).
4. Leong Chew Industrial Gas Pte. Ltd.
   Blk 3013 Bedok Industrial Park E
   01-2108
   Sister company to Lim Yew Siong with similar services and pricing (see above).
5. 181 Aquarium
   Blk 233 Ang Mo Kio Ave 3
   #01-1182
   Singapore 560233
   Up to an hour wait. Prices: 5L $25, less than 5L $20.
6. Nature Therapy Studio
   809 French Road
   #02-37 Kitchener Complex
   Singapore 200809

Bring your cylinder and swap it for another. Low chance of getting your own cylinder back again.

1. NA Nature Aquarium
   Blk 1 Thomson Road
   #01-340 Balestier Hill Shopping Centre
   Steel CO2 cylinders only. Not to be confused with Natura Aquatics.
2. East Ocean Aquarium Trading
   Blk 22 Havelock Rd
   #01-699
   For cylinders purchased from them only. If you want to get the same cylinder back, you must leave it and collect it on another day.

Leave your cylinder and get it back filled a few days later.

1. East Ocean
   See note for them in the 1-for-1 Swap section above.
2. Nanyang Trading Aquarium
   8 Chencharu Link
3. Clementi Florist and Aquarium (C328 Auntie)
   Blk 328 Clementi Ave 2
   #01-210
4. Fishy Business
   96C Jalan Senang
   #03-00 Ming Kee Building
5. New Katong Aquarium
   865 Mountbatten Rd
   #B1-23 Tanjong Katong Shopping Centre
6. Sealico Gas Energy Pte. Ltd.
   20 Ang Mo Kio Industrial Park 2A
   #01-01 AMK Techlink
   Industrial gas supplier.

Comes to your home to top up. Usually on the spot.

1. Alvin, aka Shrimplover
   Tel: 9396-4456