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That was a problem with the older 2's and 3's that's why Hydor recalled them. How long ago did you purchase them? I would contact who you got the from and have them switched out for the newer models.
hat's actually not an uncommon difference between a hydro and refractometer. You would actually be amazed how far off those swing arms can be.
I wish I was local to help you check.
It is used in the wild to blend in with their surroundings. It is a genetic factor but they tend to lose it in captivity. Nobody is really sure what trigers them to lose or keep it. It is not something they all get and the ones that do don't always lose it.
It doesn't appear that age is a...
Very nice Mike. I am following at RC but figured I'd post here too. One thing I forgot to mention though, thre is a good possibility they may loose the filaments (cirri) so don't be surprised of they do.
Thanks for posting that pic, Rich. Some of you guys should make the trip to IMAC one of these years. But have no fear, I will represent with my club shirts. :D
Yes, it's true, the ponytail is gone.
You can scrape it off the plastic a little. This will get the spores into the water column where your pumps will spread it around the tank.
As Brian said, give it time. Just keep your alk and Ca up and it will take off before you know it.