Splutter

Hi. The intake pipe is just the same male plug as the outlet plug. It allows the intake to be from a pipe instead of placing the entire pump in water. Anyway I'm on a budget so I think your pump is a little too new and expensive for me. Thanks for the offer though.

Still Looking!!!!

Still looking!

Hi All, I'm looking for a Eheim 1250 pump. I'll be running it externally so I'll need the intake pipe that comes along. Please sms me at 98157341 if you have one up for sale, thanks!

SLT does sell thermal epoxy by the name of fujik, but it seems that a lot of folks that don't know exactly what they are selling, haha.

Thanks bro! Still think it pales in comparison to so many other DIYs here though. Someday I'll add a PWM when I come back to marine =)

More views of the final product =)

Still looking!

My girlfriend helped me with the acrylic construction and I think she did a very nice job =) The acrylic bolts I got to screw in the tail plates The new 10 Ohm, 10 Watt resistors I got to limit current The new Mean Well voltage regulators - 24v, 700mA How everything looks after powering up!

sherman - I understand those. However, I'm driving the LEDs at 700mA now instead of the original 1000mA. Will there be room to play for the fluctuations?

So anyway, I ditched the idea of using this voltage regulator as the output voltage wasn't very stable. As I was running the circuit without any current limiting resistor, it led to unstable current load as well. The regulator died out after a while. I went back to the drawing table and opted for a dual AC/DC switching supply instead where I hooked up 5 LEDs + a resistor to a single regulator at 24v, 700mA. Some of my calculations: Voltage drop across 1 LED at 700mA = 3.5v Voltage drop across 5 LEDs at 700mA = 5 x 3.5 = 17.5v Voltage across resistor required = 24v - 17.5v = 6.5v Resistance of resistor required = 6.5v/700mA = 9.285ohms Wattage of resistor required = 6.5v x 700mA = 4.55w Resistor eventually used : 10 ohms, 10 watts as I wanted to be on the safe side for heat dissipation I also bought 2 new Mean Well switching regulators at SLT again. Wired up everything according to this circuit diagram:

Sherman, each LED voltage drop is between 3.3v - 3.7v, depending on what current you want to drive it at. So 5 x 3.3 = 16.5v and 5 x 3.7 = 18.5v. It's sufficient to drive. Ideally I would want to get a 3mm aluminum plate, but unfortunately my neighbourhood store only has 1mm. I was a little hesitant to get it from the industrial areas as it's just too much trouble. 1mm was more than strong enough to hold everything for a 2ft setup. I would highly suggest something thicker if it's going to be bigger in size. Jameshong, well I got pretty inspired by your post =P But I think my design is easier as I tried to minimize acrylic work on my end. I'm very new to working on this and I even broke a few drill bits trying to drill some small holes. Can't imagine what damage I'll cause if I tried to drill the 10mm and 65mm holes myself, haha.

Testing connection - it works! The 2 fans I got to cool things down. Both are rated at 12V, 0.09A from Nidec The customised acrylic pieces - they cost quite a bit to order, nearly $130 =( Screwing in my fans after drilling the mounting holes myself. I put in rubber grommets to dampen the vibrations as well. Snapping in the lighted rocker switches. One for the lights and one for the fans.

Correct bro, its from Deal Extreme. I think it's the cheapest I could find already. I still have 10 extra LEDs on hand if anybody wants to get them.

Christmas came early! Each CREE LED is individually wrapped in bubble wrap The LEDs themselves After mounting them on the aluminum plate via thermal epoxy The LED driver - unfortunately not very good (I'll explain later) Heatsinks to be stuck on the back of the aluminum plate

Well actually I've already decommed by marine tank, but I started a new fresh water tank and this is meant for that tank. 10 LEDs should suffice

Hi folks! I had some spare time while waiting for my new 2ftx1.5ftx2ft tank to cycle and I decided to try my hands on some techie work. I planned to run 10 3-watt LEDs in 2 groups of 5. Some of the things that I ordered: 1. 10 x CREE XR-E 3 Watt LEDs 2. 30watt LED driver that outputs 18V and 2A 3. Acrylic sheets customized to size and pre-drilled with holes Meanwhile, I went out to Sim Lim to get the following items: 1. Heatsink compound (Epoxy kind) 2. 10 x Heatsink 3. 2 x 80mmx15mm Fan 4. 2 x 80mm fan grill 5. Wires 6. Soldering Iron 7. Solder (Lead-Free) 8. 8 x 4Mx25mm bolts 9. 8 x 4Mx30mm acrylic bolts 10. 2 x Lighted rocker switches 11. 8 x Rubber grommets (washer) Rest of the items from various shops: 1. 1mm aluminum sheet 2. Pre-cut and drilled acrylic sheets to form body Now for some pictures! Got a 1mm thick aluminum sheet to mount the LEDs Marked the spots to drill holes for wiring. Note that the sheet isn't in great condition since I bought it from a neighbourhood store. After drilling 4mm holes for wires! After that, I had to wait for my LEDs and driver to arrive.....

Still looking!

Everything is sold!

Still looking!!

Hi bros, Looking for a 1/15hp chiller. Please PM me if anyone has one up for sale, thanks.

Remaining items: --------------------------- 1. 2ft Tank x 2 (1 main tank 2x1x1.5ft with blue stick on backing, 1 sump tank 2x1x1.2ft with 3 partition) $10 - price lowered. Main tank is very well made with clear glass 2. Dymax ph800 Pump $10 3. Durso Overflow pipe $30 - price lowered (bought from Jireh aquarium, works for up to 3ft tanks) 4. Hopar 2ft 4tubes T5 lights (2 blue 2 white ATI T5 tubes, good stuff! Unit is made from aluminium and in its original colour) $50 5. Portable Refractometer (Cover came off but still usable) $30 Take all items for just $110 with the freebies below: -Boyu UV-H9 Ultraviolet water filter - worth $25 -Mechanical on/off timer switch (for use with lights, etc) x 2 - worth $12 each -200ml of RowaPhos left over - worth $20

Remaining items: --------------------------- 1. 2ft Tank x 2 (1 main tank 2x1x1.5ft with blue stick on backing, 1 sump tank 2x1x1.2ft with 3 partition) $10 - price lowered. Main tank is very well made with clear glass 2. Dymax ph800 Pump $10 3. Durso Overflow pipe $30 - price lowered (bought from Jireh aquarium, works for up to 3ft tanks) 4. Hopar 2ft 4tubes T5 lights (2 blue 2 white ATI T5 tubes, good stuff! Unit is made from aluminium and in its original colour) $50 5. Portable Refractometer (Cover came off but still usable) $30 Take all items for just $110 with the freebies below: -Boyu UV-H9 Ultraviolet water filter -Mechanical on/off timer switch (for use with lights, etc) x 2

Remaining items: --------------------------- 1. 2ft Tank x 2 (1 main tank 2x1x1.5ft with blue stick on backing, 1 sump tank 2x1x1.2ft with 3 partition) $10 - price lowered. Main tank is very well made with clear glass 2. Dymax ph800 Pump $10 3. Durso Overflow pipe $30 - price lowered (bought from Jireh aquarium, works for up to 3ft tanks) 4. Hopar 2ft 4tubes T5 lights (2 blue 2 white ATI T5 tubes, good stuff! Unit is made from aluminium and in its original colour) $50 5. Portable Refractometer (Cover came off but still usable) $30 Take all items for just $110!

Buyer no time to collect some items, more items back up on sale! --------------------------- 1. 2ft Tank x 2 (1 main tank 2x1x1.5ft with blue stick on backing, 1 sump tank 2x1x1.2ft with 3 partition) $10 - price lowered. Main tank is very well made with clear glass 2. Dymax ph800 Pump $10 3. Aquac Remora Skimmer + Maxijet 1200 (Very good hang on skimmer, comparable to my Beckett 24" previously but much quieter - suitable for up to 3ft tanks) $100 - price lowered 4. Durso Overflow pipe $30 - price lowered (bought from Jireh aquarium, works for up to 3ft tanks) 5. Hopar 2ft 4tubes T5 lights (2 blue 2 white ATI T5 tubes, good stuff! Unit is made from aluminium and in its original colour) $50 6. Crystal Pro DI Filter unit $70 (This is the 3-stage filter, and they look only about 1/2 used, est good for another 2000l water change. Even if you decide to change all filters, it's way cheaper than buying a new unit) Take items 1-4 for just $130!