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Recent content by laserted

  1. Forever blowing bubbles....

    My bubble coral (Plerogyra sinuosa) has well, jumped. Right off it's skeleton. The polyps seem to be doing fine. I placed it on an old brain coral skeleton and it's bubbled over, and eating, tentacles expanding and all. It doesn't seem to "want" to sit in its old skeleton, either. Are there any...
  2. My idea for a DIY actuated ball valve (for wave making in cl

    I'm willing to bet there's no good data out there (yet...) on this one - the motor itself would probably be ok - perhaps give it a twist to start and break the static friction, although the motor is likely overspec'd anyway (the traditional manufacturer's CYA practice!) my question would be the...
  3. Salifert - Alkalinity Test

    Yes (as in the air sample is irrelevant)- the important part in adding any pre-mixed liquid reagent is that you add the designated liquid volume - any syringe, pipette, or metering system that uses a plunger will have an air pocket in-between the rubber stop and whatever tip would (in a lab...
  4. Hardness, Alkalinity & ffff. (also pronounced: "pH&

    Ever since switching to DI water, I've noticed a rise in the carbonate hardness of my tank makeup water. The first batches I used "proper ph 8.2" as a buffering stabilizer, since as we all know "DI water has no ph." (the accuracy of that statement has been dealt with in other threads!) Anyways...
  5. Cauliflower on the brain?

    Well, the hard stony bits have gone soggy - most likely a protozoan or bacterial infection then. Anyways, I gave it a freshwater + Tech-D bath. And summarily killed it. Or at least most of it (the coral, that is). The majority of the mantle (? - flesh) dissolved away hours later and were either...
  6. Cauliflower on the brain?

    Is there any known cause (and removal?) of what appears to be a white cauliflower-like patch that has formed on my open brain coral recently? It's quite hard, though I can't determine if it's a calcium deposit. I suppose I could chip it off if necessary, though it doesn't seem to be impeding the...
  7. PM Bullett Injector

    cwaa - regarding the tolerances on the impeller - this particular one had a 2.2mm bore and a 1.0mm stainless shaft as an axle, which ended up rattling. I started checking the impeller pumps in my "spares box" and the majority of them (mostly Rio's admittedly) had plastic bushings inserted in the...
  8. PM Bullett Injector

    Hector - I too tried the Little Giant bubbler (from Lowes) when I couldn't find the Beckett - it was satisfactory only in the upright position, and then only marginally so. I had modified it a bit to get more airflow, so I wasn't returning it, but when I get my pond finished, it will probably...

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