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3 month old Reef Octopus hang-on protein skimmer for sale. Includes a 6 month warranty. Please contact 98260862 for more details.

yup, invest in refractometer is a must for marine, if your hydrometer is placed to close to wavemaker, the SG will go up sometimes,then goes down..controlled by the flow too (just for those whom just started marine fyi)

No Offence guys but I really do pity the Turtle. He needs space to grow. A 8-10 footer tank will not be enough. Imagine the amount of stress he is going through.

bro refractometer is more accurate compare to hydrometer after calibration. coral salinity recommend around 1.024~ 1.025. refractor meter usage: 1) use the sucker provided (if there is one) to suck your display tank water (few ML will do) 2) open the protector of the refractometer, drop a few drops on the glass. 3) close the protector and the "tank water" must cover up the whole protector. 4) see thru the refractometer under normal sunlight or just normal ceiling lights. 5) you can see the measurement itself. if still not clear, RD staff will be more then glad to explain to you in detailed all the best!

please read the orginal posting.

Hi all, Left over : 2 X T5 39W, both for only $200. 3 X miracle muds, 3 for $20 free one Formula two food. No reserved!! I have the right to sell to anybody, and pilot stay away pls!! Collection at Clementi, week nites after 1930, no midnite call pls!!

vary a few salinity on my tank, surprisingly the euphyllia paraancora seems to like a value slightly above 36, judging by the amount of tentacles expansion? Not so good at 34. Slightly better at 35. Best at 36+. Values confirmed 3 times with refractometer. Is this normal? Thought NSW is about 35?