Maintaining copepod populations for a mandarin

<a href=showthread.php?s=&postid=10768746#post10768746 target=_blank>Originally posted</a> by Julio
one thing i did notce with these fish is that they will feed at night, although they are not considered noturnal when ever i did wake up in the middle of hte night and check on the tank the mandarin was advidly pecking and feeding.

you've got some pretty significant moon lighting/ambient light on the tank or you've got a strange one there Julio, most Mandy's settle in shortly after lights off, turn white and form their slime cocoon for protection.
 
i was in the same boat as davidryder..i have a 90 with at least 100lbs of live rock and had lots of pods...my tank had been running well over a year and the fuge also..and my mandrin looked really bad for quite sometime had tons of pods he just was not eating and i was just waiting for it to go any day..he has made a huge turn now and looks alot better and i see him eating pods all day..and a few month ago he started to eat frozen...i think it would be very hard to do in a 20 though wish i had an old pic of him but i got him when he was very small nice and fat now!!!
mandarin7.jpg
 
Im not going to go against what everyone is saying, but in case you still want to try i read a couple articles about feeding and keeping mandarins in small tanks in tfh magazine. You might want to look through past issues i believe its in the December 06, January 07 or February 07 issues.
 
wrasseguy2, that's a nice and fat mandarin ya got there :D

Nice photo also!


My mandarin was all skin and bones and very inactive until I turned my sump into a refugium. My display refugium circulated through my sump and I think devoid of light and anything to attach to any copepods that made it to the sump just died. He gained a lot of weight but he still isn't where the one above is.
 
<a href=showthread.php?s=&postid=10899421#post10899421 target=_blank>Originally posted</a> by dohc97
Im not going to go against what everyone is saying, but in case you still want to try i read a couple articles about feeding and keeping mandarins in small tanks in tfh magazine. You might want to look through past issues i believe its in the December 06, January 07 or February 07 issues.

Yes, you can "keep" them in a 15gal, you just need to be sure that they are fed enough. They feed all day long, so i would imagine they would cull the population down very quickly in a small tank.

The rear body/tail from above should be fat all the way back to the tail fin, and there stomach should be even to slightly protruding. (Just like in wrasseguy2's pic)
 
I do not have a problem, personally, with keeping him in the 20. But, I personally would recommend a very large fuge to house the main population. I have a 210 reef with a 75 fuge and my both tanks team with pods. But, there is a safe haven to protect a breeding population.

A~
 
I just can imagine a mandarin decimating the entire population of pods in a 20g tank before new ones have time to be introduced into the tank - even with the largest refugium attached. In a larger tank with a lot of land there would be more of a balance between how many pods the mandarin take out and how many are being introduced from the refugium. Also in a larger tank the pods would have the opportunity to reproduce in the tank as well as be supplied from the refugium.

I dunno... just one of those fish that you can definitely live without.
 
i keep a small filter sponge (from an aquaclear mini) in my sump, outside of the refugium so it doesn't get snarled with chaeto. once every three days or so i take a quart cup of mix water and float the sponge in that. ten minutes later, the container is swarming with pods, the sponge goes back in the sump and i dump the quart into the display.

i have a mandarin and a mulleri, both fat and happy. there's about 140 lbs of live rock in the display, and a DSB, and i still feel a need to export pods from the sump. as far as i can tell, the mulleri doesn't sleep, just hunts 24 hours a day.
 
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