Coral suggestions please

[Clearblue303]

I have a mini reef 20g tank with 5w/g fluorescent light.
I had failure with open brain and cup coral(the cc got overgrown by brown sluggish stuff).
I have success with bouble,umbrella leather,brown zooanthids and mushrooms.
Can someone suggest other, easy to keep corals?
I also have a frag of white stony coral from the Caribbeans that I can't identify.Looks like fingers.
Thanks for any comments.
FM

 

[fusion]

You could try some star polyps or yellow polyps....

 

[rotorh60]

Any softy would work in your tank, mushrooms, xenia, etc. Not enough light or stability (due to smallness) for SPS type of corals. I think nano's look good with softies. I know others will disagree with me, but water and temperature parameters dictate the success of SPS corals. If your desire is to keep SPS, then IMHO a larger tank.

 

[2poor2reef]

I have a 15g high-energy sps tank. In my experience, water quality and temperature are secondary to lighting and water movement regarding success with sps. That said, you clearly don't have enough light to keep most sps thriving so I would second fusion's recommendations about yellow polyps and gsp. Along with zoanthids and mushrooms, which you already have, they are my favorite low-light corals.

 

[Clearblue303]

I like how GSP's look.What about colt coral?

 

[Clearblue303]

OK.
This is what I've got:
-a chili with one sun c. polyp on the rock(I don't know if the sun is alive).
-a cauliflower c.with a light purpleish color.
I know,I have to feed the sun and the chili.

 

[bigtank]

Button polyps are really cool and also very easy to keep. Candycane (caulastrea) corals are also very easy.