Sunday, May 12, 2013

Rest in Peace Callisto

Callisto was euthanized last weekend because of her ongoing and worsening health condition.  It was a tough decision to make, but I think it was the right decision.  As many of you know, Callisto had struggled with flipover and floatiness problems for about two years.  I had tried to treat with some medications I thought might help and with diet changes, but nothing ever helped.  Recently it had gotten to the point where she was obviously deteriorating quickly and she was suffering, so I decided the kindest thing was to end her suffering.  After she died, I did a necropsy so I could find out what the problem was internally that caused these symptoms.  I ended up finding exactly what I had predicted... her swim bladder was severely deformed.

The normal goldfish swim bladder is comprised of two lobes; the cranial lobe in front and the caudal lobe in back.  There is a pneumatic duct, linking the esophagus to the swim bladder, by which goldfish can regulate the air inside the swim bladder.  Normally both the cranial and caudal lobe are filled with air, and the cranial lobe is larger than the caudal lobe.  Here's a diagram showing a normal goldfish swim bladder.

Goldfish Growth and Changes Update

Here's the most recent update: Butterfly Telescope Growth and Changes

Today Luca weighs 47 grams, is 2.75" in body length, 4.5" in total length, and has a body depth of 2".  The orange/red color on his eyes has really intensified. 

Today Felix weighs 46 grams, is 3" in body length, 4.5" in total length, and has a body depth of 1.75".  His orange/red color has intensified a lot!  It used to be very orange, but now it's definitely red.  And is it just me, or is the red color spreading forward towards his head more too? 

Sunday, May 5, 2013

How To Euthanize a Fish Humanely

Euthanizing our pet fish is obviously something none of us ever want to have to do, but sometimes it's the kindest thing if the fish is suffering and has no hope of recovery.  There are lots of ways people have come up with for euthanizing a fish, but the most humane method is by administering an anesthetic overdose.  This can be done with MS222, Finquel (a version of MS222), or simple clove oil (eugenol).  Finquel or MS222 can be purchased online and clove oil can be found at many natural foods stores in the health and beauty section.  

Items You'll Need:
-Finquel, MS222, or clove oil (in these directions, I use clove oil).
-A container large enough to hold the fish.
-A small container with a lid, like a baby food jar.
-A couple of hand towels.
-A ziploc bag.
-An air pump, some airline tubing, and an air stone.

Saturday, May 4, 2013

Callisto is Declining

Callisto came to live with me on November 10th, 2011.  From day one, she has always been a major surface-gulper.  At first this didn't appear have any impact on her swim bladder function, but over time it led her health on a downward spiral.  A few months after getting her, I started to notice that every so often, she would just hang upside-down in the middle of the water column.  At that point she didn't actually have any floaty problems; it was only flip-over problems.  Whenever she stopped swimming, she would flip over and remain upside-down until she started swimming again.  Several months later though, it became obvious that she was having major floaty problems too.  I tried many things to stop the surface gulping and floating, but nothing helped.  I tried some medications and many diet changes, but nothing had any effect whatsoever.  For a time, I seriously considered attempting the quartz implant surgery to correct her flip-over problems; even going so far as to buy all the supplies I would need.  But I decided given the fact that she is 6 and 1/2 years old now, it's not really worth putting her through the stress of that procedure.