Watchman goby breeding.
Hello,
I was wondering a couple of things about Watchman Gobies (Yellow in particular and others) that I did not see in the related webpage:
1. How long do they live?<I know people who have kept these fish for about 2-3 years. I am not quite sure on how long they can live, but I know they can live at least 2-3.> I know the Neon Gobies make it a year or 2, but I think these live longer .. true?<I believe so>
2. Are Watchman Gobies successfully bred in captivity? <yes, they have been bred in captivity and are sold as captive bred fish.>Is the process the same as it is for the Neon Gobies? <Have found a couple links that should help you- http://www.advancedaquarist.com/issues/jan2003/breeder2.htm  http://gobiidae.com/ >
3. Is the sugar sized 0.2 -1.2 mm  Aragamax acceptable for them or do they have difficulty with it? This stuff packs pretty tight, doesn't it?? <Normally people keep these fish in reefs with DSB (and have sugar fine sand). I would say you should be OK>
Thanks!<your welcome, IanB>
Rich

Re: Watchman Gobies
Ian B,
  Thanks for the info. I appreciate it. I'll check out those links tonight.
Rich <glad to help, IanB>

Blue-spotted Yellow Watchman Goby sexing- Cryptocentrus cinctus 5/5/03
Hello there
<howdy>
Thanks Anthony for the advice about the Anchor coral, I dipped it with Tech d and even though it lost a little tissue it is recovering fine
<great to hear!>
Local shop are going to hold my clowns until a anemone becomes available (great guys)
<agreed... kudos to them :) >
Now to my question how do you work out the sex of Cryptocentrus cinctus no one seems to know
<not that difficult... males really do tend to me more colorful (sharper yellow and more blue spots) but more importantly... they have thicker lips (fighting/digging), a larger buccal cavity (chin pouch) and the first hard rays of the first dorsal fin are somewhat exaggerated (taller/spikier)>
also what is the best sand bed depth I'm going to add one in the sump main tank is 90 gall sump holds 20 galls I thought of using 1 inch of sugar sand and about 2-3inch of  a courser marine sand on top what do you think?
<never mix grain sizes under any circumstance (little benefit and will stratify without screening). You will also need 3" of sugar fine sand minimum to get good denitrification. I'd recommend 4-6" minimum for a proper DSB>
the sump will also be used for fragging and growing Caulerpa and will be lit on a reverse with the main tank Thanks Tim
<please read through our archives and beyond about the dangers and limitations of Caulerpa... as well as the (greater IMO) benefits of other algae like Chaetomorpha and Gracilaria for refugiums. Use the google search tool from the home page at wetwebmedia.com. Best regards, Anthony>

Sexing of Cryptocentrus aurora 7/22/05
Hi,
<Hello>
Let me start off by saying that my wife and I currently raise Cryptocentrus cinctus (as well as several varieties of clownfish).
<Neat>
  We want to start raising the pink-bar goby Cryptocentrus aurora.
<A beauty... know that the genus is now Amblyeleotris: http://www.fishbase.org/Summary/SpeciesSummary.cfm?ID=12694&genusname=Amblyeleotris&speciesname=aurora>
We bought 4 from an online retailer with the hopes of getting at least one that looks a little different from the others as we already know that the Cryptocentrus cinctus is sexually dimorphic,
<And dichromic>
so we figured the Cryptocentrus aurora may be as well.  Well I can't see any obvious differences in the fish.  I'm rolling the dice and pairing them up.  We may have to see based on aggression.  Just want to know if anyone knows if there is a visual difference between the male an female of this fish?
<Not as far as I know... I'd look through the few links via "Google Images" (also through fishbase.org) for others input here. Bob Fenner>
Thanks,
Alan