SunkistC

As above... Pls drop me a pm if you have one to let go... Thanks!

LED rating of 3.5V means it requires a forward biasing voltage of at least 3.5V in order to turn it ON. Any voltage above 3.5V is OK as long as you put a proper current limiting resistor in series. The voltage drop across the LED is fixed at 3.5V so if you are using a 5V supply, the voltage across the series resistor will be 1.5V If the operating current of the LED is 20mA, the series resistor value should be 1.5V/20mA = 75 Ohm. If you use a series resistor value <75 Ohm, the current will be higher and the LED will be brighter but it will shorten the life span of the LED. If you use a series resistor value >75 Ohm, the current will be lower and the LED will be less bright but it may not shorten the life span of the LED. When LED manufacturer rate the LED at 3.5V, 20mA, life span 20000 hours, they are just stating that the Mean-time-to-failure is 20000 hours when you operate the LED at 3.5V, 20mA.

Dear Reefers, I have 2 pieces of BLV 250W 10K Single Ended MH bulb to be given away. Both bulbs used less than 3 months... still have a good life span. Interested pls PM me.. Collection at Marsiling Drive only

Update.. 1) Aquamedic Ozone Generator 50 - $120 Sold 2) BLV 250W Single Ended 10,000K Metal Halide Bulb x 2 - $10 each Used less than 2 months, running 4 hours alternately

Items left.... 1) Aquamedic Ozone Generator 50 - $120 2) BLV 250W Single Ended 10,000K Metal Halide Bulb x 2 - $15 each Used less than 2 months, running 4 hours alternately

Items left.... 1) Aquamedic Ozone Generator 50 - $130 2) BLV 250W Single Ended 10,000K Metal Halide Bulb x 2 - $20 each Used less than 2 months, running 4 hours alternately

X'mas sale... 1) Aquamedic Denitrator NR1000 with Dosing pump and Media - $300 2) Aquamedic Ozone Generator 50 - $130 3) Marineland Instant Ocean Hydrometer - $10 4) BLV 250W Single Ended 10,000K Metal Halide Bulb x 2 - $25each Used less than 2 months, running 4 hours alternately 5) Apures Deionizer Unit from Marine Life (need to change resins) - $30 6) Ultralife Red Slime Remover (95% full) - $10

Upz

1) Aquamedic Denitrator NR1000 with Dosing pump and Media - $320 2) Aquamedic Ozone Generator 50 - $150 3) Marineland Instant Ocean Hydrometer - $10 4) BLV 250W Single Ended 10,000K Metal Halide Bulb x 2 - $30 each Used less than 2 months, running 4 hours alternately 5) Apures Deionizer Unit from Marine Life (need to change resins) - $40 6) Ultralife Red Slime Remover (95% full) - $15 Interested please sms 97646964 (Marsiling Drive). Thanks Seng Chee

Update (Sold items have been removed from the list): Equipments 1) Aquamedic Denitrator NR1000 with Dosing pump and Media - $350 2) Aquamedic Ozone Generator 50 - $150 3) Marineland Instant Ocean Hydrometer - $10 4) BLV 250W Single Ended 10,000K Metal Halide Bulb x 2 - $30 each Used less than 2 months, running 4 hours alternately 5) Apures Deionizer Unit from Marine Life (need to change resins) - $50 6) Ultralife Red Slime Remover (95% full) - $15

Update (Sold items have been removed from the list): Equipments 1) Aquamedic Denitrator NR1000 with Dosing pump and Media $350 2) Aquamedic Ozone Generator 50 - $150 3) Eheim 1264 pump 4500 l/h 100W - $150 (Reserved) 4) BLV 250W Single Ended 10,000K Metal Halide Bulb x 2 - $30 each Used less than 2 months, running 4 hours alternately 5) Apures Deionizer Unit from Marine Life (need to change resins) - $50 6) Marineland Instant Ocean Hydrometer - $10 7) Ultralife Red Slime Remover - $15 Lifestock 1) Blue Tang 2" - $15 (Reserved by ranchuboy) 2) Flame Hawk - $50 (Reserved by scs88)

Update (Sold items have been removed from the list): Tank Set 1) Tank 4x2x2.5(H) 12mm Glass IOS with Euro Bracing, complete with Hood & Cabinet - $400 (Reserved) Sump 28"x23"x16"(H) 6mm Glass 2 outlets and 1 inlet in the overflow compartment +GF+ Georg Fischer Pipings (can be dismantled & reassembled) 100% Caribsea Aragonite sandbed (abt 2") Atman At-107 pump 5000 l/h 115W Free Sallifert NO3/Calcium/KH, Sera NO2/NO3/Calcium/PH/KH test kits, Kent Marine Pro Scraper 24" Buyer need to arrange transportation for the tank 2) Live Rocks abt 100kg - $4/kg, take all $300 (Reserved) 3) Deltec AP701 Skimmer - $850 (Reserved) Selling as a set for $1350 (Reserved) Equipments 1) Tunze TS12 with 7091 Single Controller & Magnet Holder - $320 2) Portable Refractometer - $40 3) Aquamedic Denitrator NR1000 with Dosing pump and Media $350 4) Aquamedic Ozone Generator 50 - $150 5) Eheim 1264 pump 4500 l/h 100W - $150 (Reserved) 6) BLV 250W Single Ended 10,000K Metal Halide Bulb x 2 - $30 each Used less than 2 months, running 4 hours alternately 7) Apures Deionizer Unit from Marine Life (need to change resins) - $50 Lifestock 1) Blue Tang 2" - $15 (Reserved by ranchuboy) 2) Flame Hawk - $50 (Reserved by scs88)

6) BLV 250W Single Ended 10,000K Metal Halide Bulb x 2 - $30 each Used less than 2 months, running 4 hours alternately BLV 10,000K when driven with normal ballast has a yellowish tint.. the colour is white when driven with Victron ballast.. refer to the following thread to see it running in white WL's 4ft Tank II

Update (Sold items have been removed from the list): Tank Set 1) Tank 4x2x2.5(H) 12mm Glass IOS with Euro Bracing, complete with Hood & Cabinet - $400 Sump 28"x23"x16"(H) 6mm Glass 2 outlets and 1 inlet in the overflow compartment +GF+ Georg Fischer Pipings (can be dismantled & reassembled) 100% Caribsea Aragonite sandbed (abt 2") Atman At-107 pump 5000 l/h 115W Free Sallifert NO3/Calcium/KH, Sera NO2/NO3/Calcium/PH/KH test kits, Kent Marine Pro Scraper 24" Buyer need to arrange transportation for the tank 2) Live Rocks abt 100kg - $4/kg, take all $300 3) Deltec AP701 Skimmer - $850 Selling as a set for $1350 Equipments 1) Tunze TS12 with 7091 Single Controller & Magnet Holder - $320 (Reserved) 2) Portable Refractometer - $40 3) Aquamedic Denitrator 1000 with Dosing pump and Media $350 4) Aquamedic Ozone Generator 50 - $150 5) Eheim 1264 pump 4500 l/h 100W - $150 (Reserved) 6) BLV 250W Single Ended 10,000K Metal Halide Bulb x 2 - $30 each Used less than 2 months, running 4 hours alternately 7) Apures Deionizer Unit from Marine Life (need to change resins) - $50 Additives/Media 1) Polyfilter x 1 - $5 2) Tropics Marine Pro-Reef Salts (7kg left) - $40 Lifestock 1) Blue Tang 2" - $15 (Reserved by ranchuboy) 2) Flame Hawk - $50 (Reserved by scs88)

Refractometer.. available

Hi, one time replacement cost is $80.. but if you sign up a package for 3 times with 2 years time frame it will be $150.. Water in water out? Its all labelled on the unit itself

Tunze TS12 with 6100 pump, 7091 Single Controller and Photo Cell.

Apure Deionizer from Marine Life.. resins need to be changed

Aquamedic Denitrator NR1000 with dosing pump.

Update (Sold items have been removed from the list): Tank Set 1) Tank 4x2x2.5(H) 12mm Glass IOS with Euro Bracing, complete with Hood & Cabinet - $500 Sump 28"x23"x16"(H) 6mm Glass 2 outlets and 1 inlet in the overflow compartment Georg Fischer Pipings (can be dismantled & reassembled) 100% Caribsea Aragonite sandbed (abt 2") Atman At-107 pump 5000 l/h 115W Free Sallifert NO3/Calcium/KH, Sera NO2/NO3/Calcium/PH/KH test kits, Kent Marine Pro Scraper 24" Buyer need to arrange transportation for the tank 2) Live Rocks abt 100kg - $4/kg, take all $300 3) Deltec AP701 Skimmer - $900 Selling as a set for $1400 Equipments 1) Tunze TS12 with 7091 Single Controller & Magnet Holder - $350 2) Portable Refractometer - $40 (Reserved) 3) Aquamedic Denitrator 1000 with Dosing pump and Media $400 4) Aquamedic Ozone Generator 50 - $150 5) Eheim 1264 pump 4500 l/h 100W - $150 (Reserved) 6) BLV 250W Single Ended 10,000K Metal Halide Bulb x 2 - $30 each Used less than 2 months, running 4 hours alternately 7) Apures Deionizer Unit from Marine Life (need to change resins) - $50 Additives/Media 1) Polyfilter x 1 - $5 2) Tropics Marine Pro-Reef Salts (7kg left) - $40 Lifestock 1) Blue Tang 2" - $15 (Reserved by ranchuboy) 2) Flame Hawk - $50 (Reserved by scs88)

PH-203 PH/ORP Controller.

View at Marsiling Drive (near Woodlands Checkpoint).

Update (Sold items have been removed from the list): Tank Set 1) Tank 4x2x2.5(H) 12mm Glass IOS with Euro Bracing, complete with Hood & Cabinet - $500 Sump 28"x23"x16"(H) 6mm Glass 2 outlets and 1 inlet in the overflow compartment Georg Fischer Pipings (can be dismantled & reassembled) 100% Caribsea Aragonite sandbed (abt 2") Atman At-107 pump 5000 l/h 115W Free Sallifert NO3/Calcium/KH, Sera NO2/NO3/Calcium/PH/KH test kits, Kent Marine Pro Scraper 24" Buyer need to arrange transportation for the tank 2) Live Rocks abt 100kg - $5/kg, take all $400 3) Deltec AP701 Skimmer - $900 Selling as a set for $1500 Equipments 1) Tunze TS12 with 7091 Single Controller & Magnet Holder - $350 2) PH-203 Digital PH/ORP Controller (New) - $150 3) Portable Refractometer - $40 (Reserved) 4) Aquamedic Denitrator 1000 with Dosing pump and Media $400 5) Aquamedic Ozone Generator 50 - $150 6) Enaly Ozone Generator EOZ-300Y - $20 (Reserved) 7) Eheim 1264 pump 4500 l/h 100W - $150 (Reserved) 8) Sicce Multi 4000 3800l/h 67W - $60 (Reserved) 9) BLV 250W Single Ended 10,000K Metal Halide Bulb x 2 - $40 each Used less than 2 months, running 4 hours alternately 10) Apures Deionizer Unit from Marine Life (need to change resins) - $50 Additives/Media 1) Polyfilter x 1 - $5 2) Tropics Marine Pro-Reef Salts (7kg left) - $40 Lifestock 1) Blue Tang 2" - $15 (Reserved by ranchuboy) 2) Flame Hawk - $50 (Reserved by scs88)

Cascaded Fluidized Reactors driven by Sicce IDRA 1200 l/h pump. Pls note that one of the FR has very minor leak problem at the bottom water inlet joint as indicared by the red arrow. The leak is something like one drop of water sip out per hour kind. It will not be an issue if this unit is run insump. The other unit is ok.

Deltec AP701 Protein Skimmer.