I am curious about what exactly triggers LPS (cancycanes, for example) to extend feeding tentacles.
I have two cancycanes in the tank. A brown with green centers and a mint green.
The mint green extends its feeding tentacles out at least an hour or two each evening before the brown with green...
So yesterday, looking at the tank, I noticed a small (nassarius-size, can't remember the name) snail on the elbo that comes out the bottom of my seaswirl. Peacefully riding along, back and forth, munching away.
No clue how he got there!
What strange places have you found snails?
I am looking for recommendations for some in-line probes.
Specifically, I would like to be able to continuously monitor:
Index of refraction (specific gravity)
I would like to have fairly good precision, but would also like to get the probes and monitors for under about $3,000...
About a month ago the tank GFCI tripped. I re-set it and everything was fine. So I figured that sometimes they just trip.
Yesterday I came home to a dark tank and the battery-powered air pump was running. I reset the GFCI and everything was fine.
For about two hours...
Was looking at the aquarium after dark, and I saw what looked like a long colourless tentacle coming out of some live rock. This extended out about 1-1/4 inches as it seemed to be searching for food/detritus.
I remember seeing something similar when the tank was set up back in 2000, but hadn't...
I am considering switching from VHO to T5HO, and have some questions:
first, how long (outside of endcap to outside of endcap) are the "48-inch" T5HO systems?
and second, since this will be a retrofit, what are good (parabolic) reflectors?
a long while.
Would it be better to do as series of small water changes (say 10%),
or a larger water change (at least 33%)?
Small water changes will take a large number to have any effect. But will not shock the tank.
A large water change will have more of a fixing effect, but could cause a...
I will be on sabbatical leave from about mid August to mid December. My wife will be staying in Seattle, but would prefer to not have to deal with the tank.
Tank is 100-gal, established over ten years. Will need weekly make-up water refill, skimmer emptying, etc.
I would prefer a UW grad...
My VHO's haven't come on for the past two days, and I am hoping it is just the fuse. My question - how do I get to the fuse. I found a black plastic piece about the diameter of a dime on one end of the ballast. Inside it is a white plastic piece with a screwdriver slot.
I assumed that a...
I am looking for a link with information on converting the the salinity reading from a refractometer (calibrated to ppt sodium cloride solution) over to index of refraction.
Oh, and another conversion from index of refraction over to brix would be nice as well.
I always forget to clean the dust filters on the fans in my hood. But when the weather gets hot, I get desperate to cool the tank. Then I remember that I can't remember when I last cleaned the filters. Two hours after I replaced the filters, the tank temperature had dropped a half of a...
Don't get me wrong - I like my two long-spine urchins. but recently my digital thermometer for the tank quit reading temperature. Today I noticed that the thermocouple lead, which had been covered with hair algae, is now bare and showing a white line (which I assume to be the inside...
I recently had a discussion with a colleague in which he explained that diatoms are a major food source for zooplankton. He went on to describe how wonderful diatoms were - how they were good at utilizing nutrients, how they were especially high in fatty acids, etc.
Since many corals consume...
I was adding some magnesium supplement (Tropic Marin Bio-Magnesium) to the tank and noticed that all three of the Giant Green Metallic Mushroom Anemones (Rhodactis sp.) in the tank "onioned". Didn't notice any change in the other corals.
Just an observation ...