lyz77

bump..

What salt are you using??

Manage to swap 1 unit of RW15 with RW8. Left 1 unit.

bump...

Need to let go this wonderful skimmer as I need space for a refugium. Just replace the needle wheel propeller last month and you can refer to the following link on the specs of the skimmer. Looking at $400. Collection at Fernvale. PM me if you are interested. http://www.aquamarin.com.sg/productsDetail.asp?productid=1620 Cheers!

I have two unit of RW15 and find that it is too powerful for my 3ft tank even though I can lower the power. Looking for a swap with RW8 if any. PM me if you are interested.

Bought this DC skimmer pump 2 weeks ago from AM as I thought my current pump is faulty, end up it is only the power adapter is faulty. Bought at $308 and selling at $220 without the power adapter. You can get the power adapter from AM or Sim Lim Tower. I throw away the receipt but AM have the warranty sticker so it is still covered under warranty. Price is fix as this is a good deal at my lost. Kindly PM me if you are interest and deal at Fernvale LRT station.

Tks for the advise. My AT is very fussy and mostly eat red algae oni. still swimming around but seem like its appetite is getting bad slowly...

Got an AT for 3 weeks and the white spot seems to be getting worst. I wanted to setup a QT but I wonder if I need a chiller? Can the AT withstand water temp of 30 deg? If I am not wrong, the water at room temp is ard 29-30 deg. Please advise. Thanks in advance!

Interested to get the Ice Cap from Coralvue but I understand the warranty will void outside US. Anyone use it wit Apex? If yes mind to share your experience?

Is the Achilles Tang still available?

Recently switch to APEX controller and realize that it doesn't come with the float switch as compared to Aquatronica. Does anyone know where to get those float switch and how do I hook them up with Apex?

Plan to redo my wiring layout using pegboard or perforated board. Does anyone know where I can get it? Thanks in advance!

Sorry for the late reply. The bucket is 20kg.

Selling 1 bucket (New/ Unopen) Skimz salt for $50. Collection at Fernvale LRT. Will throw in another almost half bucket of used Skimz salt.

Did a 20% water change last week and stop dosing of Ca and KH but continue Mg. The Ca reading maintain between 400-420ppm. As for KH, it was 8.3 after water change but gradually drop to 5.1 and stay consistent after 3 days. Did another 20% water change again yesterday and KH was only 6.1. Tried to bring it up to 8.4 and this morning, the reading drop to 6.7. It seem like I continue to have difficulty figuring out the cause of fast KH consumption. I am wondering if low PH will cause KH to drop? On average, my PH range between 7.6-7.8. I tried dosing kalkwasser but doesn't seem to help bringing the PH over 8.0.

Thanks!

Mine is only a 3ft tank. As I mentioned previously, when i introduce some SPS, it start to STN and one of the possible reason is likely due to the swing of KH. Before I start dosing, I notice my KH will normally fall below 7 and sometime even drop to 5dKH. With dosing, I am also finding it hard to keep KH at 7 by dosing such a large amount.

I only have 2 feathers, 1 hammer and 4 fish. Didn't wanna stock up until I can control my parameter as those SPS I added previously stn. Which I suspect is due to KH swing. As I use dead rock to start my tank, so far no coralline algae. Got brand new Salifert test kit to verify my parameters and pretty sure test kit is working fine.

Will doing a major water change stabilize KH? More or last the fast increase of salinity is due to high dosage of KH but on the other hand, I could not pin point why my KH drop so fast within a day.

I am equally puzzled. I chk my Ca, KH and Mg on a daily basis around the same time. My Ca is around 430ppm and Mg is around 1380ppm. Just that the KH is going up and down inconsistently. Being trying to figure out why but till date, clueless.... hence do not dare to add new stock!

I do not follow Randy Mix as I choose to increase the concentration of the mix and reduce the dosing proportion. Currently, this is my mixing ratio: Ca: 1L RO/DI water + 500g CaCl KH: 1L RO/DI water + 180g Sodium Carbonate (Baked) Mg: 1L RO/DI water + 200g Magnesium Chloride I have no issue with my Ca and Mg as with the above mix, I dose 48ml each at 8 different interval. As for my KH, I need to dose 500ml per day at 8 interval as well. With the above mixing ratio, I tried to measure the mix with a refractometer and the reading go way beyond 1.025 which I believe is what contribute to an increase in salinity over time when I continue to dose. I am still trying to figure out why my KH fluctuate so much and I need to dose such a high level to keep it above 7dKH.

I have been dosing Ca and KH for 6 months and I notice an increase in salinity over time say 2 weeks from 1.025 to 1.027. To reduce salinity, I top up with RO/DI but the down side is it will affect my Ca and KH level. I am thinking of doing a 20% water change with salinity at 1.022. However, this will also reduce the Ca, KH and Mg level in the water mix. If I add Ca and KH in the water mix, again, it will increase the salinity. In this case, how can I maintain my Ca and KH and still prevent salinity increase? I measured my Ca and KH mix with a refractometer and both register high salinity reading, over 1.025.

Thanks for the details and it is very informative. Appreciate your explanation on this.

Can you share with me your mixing ratio?