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Showing content with the highest reputation since 07/25/2021 in Posts

  1. Hi im selling off item please support me.. I want to clear asap ya..only left on this item.. Some item can negotiate.. - flipper tank cleaning $50 - caribsea hawaiian black sand is about 2 bags $10 - bubbles magus protein skimmer (use less than 4 months) $140 - portable refractometer $10 - caribsea Liverock 4pcs $150 Sent from Singapore Reef Club mobile app Sent from Singapore Reef Club mobile app Sent from Singapore Reef Club mobile app Sent from Singapore Reef Club mobile app
    1 point
  2. Hi, multiple medium to large frags to let go at $20 - 25 each. Stable and well coloured. Interested, please WhatsApp 81612275. Deal in the West, near Clementi. Thanks. Sent from Singapore Reef Club mobile app
    1 point
  3. Hi Darren, The ph graph looks like this after installing the additional FM100. So I would think another 0.05 increase in general? I have also made some other changes like increasing effluent and reducing my kalk dosage. So may not be entirely accurate representation of the effect. Oh. By the way, I also found out through a ph tank water airstone test, that my surface / tank aeration is too much compared to my ambient co2 levels in the room. Ie the co2 exchanges is happening faster than it can be removed sometimes. Made some changes on that too, ie increase aeration only during hours where ph of my tank is lower than an estimated ambient co2 levels. Sent from my iPhone using Tapatalk
    1 point
  4. Take note these were grown in freshwater. Have 7 plants left, $10 per plant. Take all for $45 collection in the east Sent from Singapore Reef Club mobile app
    1 point
  5. Reducing my corals... Mother piece not frag 3cm, $200 92954138
    1 point
  6. Update remaining available coral… 1. Green base, Purple body, blue tip mushroom (6cm) @ $25 2. Pandora (I think) Zoas (over 20 polyps) @ $15 Take both at $35. Thanks! Sent from Singapore Reef Club mobile app
    1 point
  7. Red Sea 250 limited edition with mable laminated 2 yrs plus condition 8.5-9/10. Viewing and confirmation with non refundable deposit. $750 (collection around 1 mth from now ) Red Sea RSK 300 skimmer $275 Coral as attached photo Yellow circle $5 Red circle $10 Black circle $35 Green circle $15 Blue circle $20 Some close up shot photo as well Sent from my iPhone using Tapatalk
    1 point
  8. Selling at $850 with reagents. No box. Still under warranty. Collect at CCK
    1 point
  9. Various fishes to let go, pls pm me what fishes u keen. Special price if take all. Also have a brand new tub of 5kg marine salt to let go at $15. Collection at Kang Ching Road near lakeside mrt.
    1 point
  10. nice post! followed your advise and waiting for your next post
    1 point
  11. Selling off KH Guardian (KHG). Good for reefers who thinking of skipping their manual titration weekly test Great and excellent workhorse. Only aesthetic defect the screen border slightly rusting. I have also upgraded the nozzle to V2. Comes with additional -AIM Module(to connect to APEX) - TP Link (Direct Link to Wifi) - 2 bag of reagent (good to last u 6months) Self collect at CCK. PM to deal.
    1 point
  12. Kh Measurements - Alternative I end up getting a kH monitor. The device does not use reagents, does not produce waste liquid, does not require frequent calibrations. Too good to be true? In most cases, it would be. But thanks to good science and clever engineering, there is a solid alternative for kH monitoring. kH measurements (Part II) Other than titration method, there is another way for us to determine the carbonate hardness of the aquarium. For a carbonate buffer, such as seawater, the kH, CO2 concentration and pH are correlated. This means, if we know the pH of the aquarium, as well as the concentration of CO2 in the water, we can reliably calculate the kH of the water. You can take a glance at this article. Such measurements is not without its challenges. Firstly, in order for the kH calculations to be accutate, the pH measurements must be very accurate and precise. This requires properly calibrated pH probes which is accurate to 0.01 pH. Probes which can do this with consistency are generally very expensive. Not to mention frequent calibration is needed. Secondly, measuring of carbon dioxide concentration in water is expensive and inaccurate. Therefore if we want to measure the kH in this way, we have to solve two expensive problems: accurate measurement of absolute pH and CO2 concentration. Engineering to the Rescue Fortunately. There are ways to bypass these costly problems. If we can't measure the CO2 concentration in the water, can we adjust the sample to a known value? Turns out we can. By bubbling the sample water, we can make the CO2 level in the water to be the same as the air around it. Measuring CO2 concentration of air is easy and cheap. This, however, means we still need to have an extremely accurate pH probe, as well as a (cheap) meter to measure CO2 level. Again, engineering to the rescue. An Elegant Solution If we have two samples of water, at the same temperature, same CO2 concentration. Then the difference in kH is only affected by the difference of the pH of the liquids. And if we bubble two liquids with the same air. They will have the same CO2 concentration. If we use the same pH probe to measure the pH of both solutions, then the difference in pH can be measured very accuratly. [ for example, two liquids at pH of 8.01 and 8.03 respectively. The difference in pH is 0.02. If a pH probe is not well calibrated, it may read 7.99 and 8.01. The difference is still the same] This neat trick completely bypass the need to accurately measure any CO2 level, or having to measure the absolute pH. Oh wait. There is more icing on the cake. Since nothing (except air) is added into the sample, the water can be return unchanged to the aquarium. In addition, since it's not based on titration, the sample volume does not matter at all, which means there is no need to calibrate the sample pumps at all. All in all, in my opinion, too good but true. AquaWiz The device is AquaWiz. I have been using it for more than 2 month. It runs very well for me. I'll write more about it in the next post.
    1 point
  13. Kindly contact me @ 9oneone7 two4two5 if you are interested. Collection @ 753104. Thank you. #1 Orange blue green echinata colony ($100) #2 Bicolor yellow head purple body favia colony ($70)
    1 point
  14. Small RBTA for sale. Self collect at West Coast Gardens. $5 Sent from Singapore Reef Club mobile app
    1 point
  15. Its not very clear in the full tank shot, but I do have some tiny cheap-ish ($10-$15) frags just to test water. But I did get a more expensive ($40) hammer LPS, so I get to see some "moving" corals at least. Probably the biggest challenge face keeping a tank in the office is the weekends, because I don't usually go unless I have some larger maintenance task I have to do like change water, which I do every 2 weeks, but long run I'm going to try to stretch it to once a month. But anyway I bought a cheap battery operated fish feeder (white colour!) to feed the fish over the weekends, so its all good. We also have cameras around the office, so can monitor no issue. The benefit of having your tank in the office is that I think most of us spend our waking hours in the office rather than in our homes actually (of course now covid is an exception), so get to enjoy the tank more. If your vendor/customer sends you a nasty email, then just look at the fish swimming then all will be well! Yea my wife is supportive for sure. Its just our home is not that big, and we have 2 young kids, so she wants our kids to have more space to move around. Plus young kids and wires don't go very well together, and we all know how much wires we have in and around our tanks!
    1 point
  16. 1. Blue tang :$15 2. Blue ring angel (Juv ):$30. 3. Yellow tail damsel: 5 for $12. 4. Common clownfish: 3 for $8. 5. Clarkii clownfish: 2 for $12. 6. Maroon clownfish: $5 each. 7 Green blue chromis: 2 for $5.
    1 point
  17. Selling for $80, getting too big.
    1 point
  18. Pm me at 84995566 for fast response. Cole toon at bukit batok Sent from my iPhone using Tapatalk
    1 point
  19. Approx 4" tall, not including dorsal fin $60 Collection at East Side Whatsapp 98212678 Sent from my ELE-L29 using Tapatalk
    1 point
  20. 1. Innovative Marine Nuvo 20 (minimal scratches) with 2 spinstreams, 1300l return pump, media chamber, customised filter pad holder and customised jumpguard - 130 2. Eshopps Nano Skimmer (used 40 days) with 1 year warranty from Ah Beng and new warranty card from eshopps can register for 3 years - 160 3. Temperature controller (used 1 month from Aquamaniacs) - 20 4. Kamoer ATO One SE - 50 5. Vibrant - 25 6. Tropic Marin All-For-Reef (450+ml) - 10 7. TDO Chroma boost small (80%) - 10 8. Chemiclean powder (new) - 20
    1 point
  21. Price update: Snowflake clown pair -$180 Sailfin tang - $40 Yellow tang $350 Hippo tang $35 Banner fish-$35 Sent from Singapore Reef Club mobile app
    1 point
  22. solid zoa garden there◡̈
    1 point
  23. There could be various reasons. But one likely one is that it is bleaching due to excessive light. Gonio generally prefer low light conditions. From the picture, it seems to be placed at a location that's bright enough for SPS/Monti. Perhaps its too bright. Would suggest to bring it to a more shaded spot.
    1 point


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