Newbie Question(s) - Fish Compatability + more

[dbozman]

Hello All,

Thanks in advance for any help you can give me!

I have a 20 gal tall tank salt water tank that has been up and running for about 10 weeks. The tank is stable and doing well. I have the water checked at my local fish store and they have assured me that the tank water look perfect.

My set up is as follows:
20 gal tall tank.
65w Compact Floresent 50/50 (soon to be upgraded to a 130w)
15w Floresent (soon to be gone with the upgrade)
25 lbs of live rock.
Several corals.
1 Yellow stripe maroon clown fish
1 Domino damsel
Standard clean-up-crew members (blue leg crabs, snails)

All members of the tank are doing well (aside from question 2).

Question 1
The Domino Damsel was recomended to "break-in" my tank. The Marron/Yellow Clown was added in month 2. I would like to add a Clown Goby, but am worried the other fish are too agresive. Should I remove the Domino? Would the Clown be ok with him? How big of a risk is it?

Question 2
I have a colony of yellow polyp zoo. Click here for pic: Click here for a pic.

They have done quite well for a month or so, but recently there tenticles have started appearing much shorter! This has me worried. I moved them down a bit in my tank to see if perhaps they were getting too much light. Could this be the case? Or, perhaps not enough light?

Thanks a lot for any help you can give me. It's much appriciated!

 

[aztbs]

If you can remove the damsel, I would. They get very large and more aggressive.

As for the yellow polyps, I got some that were bright and beautiful and in my tank they turned more of a golden brown. They extend their tenticles randomly to me, regardless of where I have put them. I read that they liked very strong light but the ones I have in a very shadowy area of the tank seem to be the brightest yellow and they stay very short.

HTH

 

[dbozman]

Thanks for the advice!

I think I'll take out the Domino and keep the clown. Apparently the Maroon and Yellow clown are the most agressive of clown fish... or so I'm told, so I'm still a little worried. I guess I'll just have to watch him.

 

[szwab]

the clown is territorial. As mentioned unless you really like the damsel I would see if you can catch it.

How long have the polyps not been fully extending. sometimes they just don't sometimess it's a sign of less than ideal water quality, lighting, or flow. when i had some in my tank I kept them along the bottom. Be careful though as they do have a fairly potent sting towards other corals and once established they will spread.