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rockfish

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Everything posted by rockfish

  1. 4 ft by 2 ft .. ?? thats cheap .. will go there to get some..
  2. hi all, just a question .. can charcoal be put into sump? wat are their functions in the sump..?
  3. hey pal .. can post a picture of it .. ?? how does it looks like .. ?? not the same as liverock meh .. ??
  4. erm ... lets see .. have to let me recall my fluid dynamics.. u can calculate backwards.. state ur tank volume first .. i.e. 300L then state ur turnover rate per hr.. lets say .. 4 times/hr calculate the volume flow rate first... 300 x 4 = 1200L/hr then convert the vloume flowrate into L/sec.. 1200 / 3600 = 0.333 L/sec or 333 ml/sec so 333 ml supposed to pass thru ur pipe per sec 1 ml = 1 cm^3 gravity = 9.8 m/s^2 then the speed = accel x time speed = 9.8 x 1 sec = 9.8m/s = 980 cm/s divide the volume flowrate by the speed .. u will noe the diameter of ur pipes.. example: 333 / 980 = 0.34 cm^2 34 mm^2 is the area of ur pipe... then the final step is wat most of us noe... circle area = pi * r^2 r^2 = area/pi r = sqrt(area/pi) so .. r^2 = 34/3.142 r = sqrt(34/3.142) r = 3.3mm so diameter is 6.6 mm... so ur pipe have to be more or less 6.6mm dia .. understand ..?? just follow the step .. and change the values to ur own .. should be able to do it .. i guess this is detail enough .. if still dun understand .. PM me ... i enrol u to my tution class ... haha i charge very cheap .. keke ... $50 per min ... hahah
  5. hi .. u mean sungei rd .. as in the road selling old stuff .. ??
  6. hi tanzy, then u mean the whole sump empty ... ?? i know bio balls and ceramic rings are nitrate factorys ... so they are out for me ... coz i dun want to change water like the fress water fish .. so far i noe is DSB and a skimmer .. wat else can i put .. ?? some say LRs.. ?? cheers james
  7. then are they better for sump than bio balls?? heard that coral chip can help maintain calcium level...
  8. wat about the price.. ?? how much difference..?? coz i'm got a good offer for 4 ft PL ..
  9. hi! i'm wondering if PL light is strong enough to support corals.. becos i have problems with temperature. so cannot use MH.. cheers james
  10. hi all, i need ur advice, especially those with lotsa knowledge in filter medias. i'm setting up a sump for my 4ft x 1.5ft x 1.5ft, but i'n not sure wat to use as filter media. some say bio balls is good some say ceramic ring. recently someone told me that coral chip is the best. ur opition please..!! cheers, james
  11. hey pal!! maybe i can answer some of ur questions for u.?? the square mild steel pipes are call hollow-sections. usually 25x25x3 mm ones will be strong enough and i'm pretty sure that the welder can make it real straight. but for the price is up to them to chop u ... haha good luck!! how did i noe ... ?? i was in this line metal workshop
  12. ) terryansimon (Bishan) 2) flubberina13 (AMK)... 3) Hecter (Woodlands) 4) BarraCuda (CCK) 5) Morgan (Outside AMK) 6) Rumor (Sembawang) 7) Bwilly (Sembawang) 8) DeepBlue And Trigger Queen (Yishun) 9) ridemtb(Serangoon) 10) Yukon (Sam beh weng)?? 11) Stinger (Woodlands) 12) Dinosaur (Si Hai Wei Jia) 13) Volitan (Woodlands) 14) OceanBlues (Yio Chu Kang) 15) fangtooth ( woodlands ) 16) Dr evil (Woodlands) 17) nutx (AMK) 18) TANGT (AMK) 19) Hippo (Bishan) 20) Golden Tooth (Woodlands) 21) hkching (Sengkang) 22) Razo (Woodlands) 23) lightningstrike (Bishan) 24)Jazzben81 (Thomson) 25) CKS (Yishun) 26) aStRoBo| (Yishun) 27) killfire (woodlands) 28) Nicky30092002 (Woodlands) 29) Valleyman (Hougang) 30) uncleliew (woodlands) 31) Aspire (Yishun) 32) den04 (Yishun) 33) alloysius(AMK) 34) reeflobang (Admiralty Drive, Sembawang) 35) Blue.tang (between TP & AMK) 36) xfusion (AMK) 37) osmosis (Yishun) 38) Jewel Tang (Hougang) 39) eprouve (Woodlands) 40) Kelstorm (AMK) 41) zenus (Sembawang, Canberra Road) 42) rockfish (yio chu kang)
  13. 1) terryansimon (Bishan) 2) flubberina13 (AMK)... 3) Hecter (Woodlands) 4) BarraCuda (CCK) 5) Morgan (Outside AMK) 6) Rumor (Sembawang) 7) Bwilly (Sembawang) 8) DeepBlue And Trigger Queen (Yishun) 9) ridemtb(Serangoon) 10) Yukon (Sam beh weng)?? 11) Stinger (Woodlands) 12) Dinosaur (Si Hai Wei Jia) 13) Volitan (Woodlands) 14) OceanBlues (Yio Chu Kang) 15) fangtooth ( woodlands ) 16) Dr evil (Woodlands) 17) nutx (AMK) 18) TANGT (AMK) 19) Hippo (Bishan) 20) Golden Tooth (Woodlands) 21) hkching (Sengkang) 22) Razo (Woodlands) 23) lightningstrike (Bishan) 24)Jazzben81 (Thomson) 25) CKS (Yishun) 26) aStRoBo| (Yishun) 27) killfire (woodlands) 28) Nicky30092002 (Woodlands) 29) Valleyman (Hougang) 30) uncleliew (woodlands) 31) Aspire (Yishun) 32) den04 (Yishun) 33) alloysius(AMK) 34) reeflobang (Admiralty Drive, Sembawang) 35) rockfish(yio chu kang)
  14. opps..!! sorry sunny!! .. i would not want that toilet thingy in my tank as well... hehe .. i was actually refering to this ..
  15. oh yah .. btw ... the holes at the tip... dun make it too big .. start with a small hole ... test it .. if not good enough.. then enlarge it .
  16. Hmm.... i think the first 2 design cannot ... risky isn't it..?? but 3rd design with the 2 tubes to the air-tight bottle can work ... but must make sure that the bottle is really airtight... if not the water will slowly leak into the tank.... then before u noe it ... i made a drip auto top up a few year back... same concept... but different design .. for those who are thinking of making this... i'd attached a drawing with instructions. hey!! btw... i'm a guy with too much brain-juice to waste .. hehe if anyone of u got any DIY ideas but cannot put to realism, try emailing me... let me waste some of my brain-juices for u... as i got a thing for DIY projects ... "occupational hazzard" (design engineer) enjoy "DIY"ing... jamesrock
  17. hi all!! anyone know any LFS selling Venturi Valve?? most ideally about 1/2 to 1 inch..
  18. hey guys!! this idea actually works. i made something like this a few years ago in the university for my thesis to auto top up water for my experiment. but the only this is that u dun open a hole in the back of the bottle... when i can find time, i will post a detail drawing and the instructons to make it ... or those who are interested can email me . then i can advice u how to do it ... cheers jamesrock
  19. Hi All !! i'm going to collect LR from the beach later... i'm planning to wash it and leave it in the salt water container for a few days... but i got no idea if it is enough or wat else i need to do to prepare it for my fish tank. any experts out there wanna share ur experiences?? cheers jamesrock
  20. i noe a glass merchant at sembawang road opposite seletar institute i think is call " sim brother glass merchant" something like that .. they charging $220 for 4 ft X 18" X 18 " 12 mm thick glass. $200 for 10 mm ones ... if u think the price is reasonable can try there...
  21. hi all!! need ur advice... someone offer me 2 of his 3ft tank with sand, overflow system, lights, cycles saltwater and water pump for $250 .. but i thinking of getting a 4ft one to start with ...?? do u think this is a good deal..?? is it better to start with a set up tank.. or start afresh ..?? i'm new to this hobby.. i used to rear koi... give me some advice.. cheers
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