Green star polyps

[christan1959]

I know green star polyps are among the easiest softies to keep, but mine are losing colour. Any idea how to reverse this, anyone?

[engineer]

try dosing iodide and trace element

[stevenchia]

I know green star polyps are among the easiest softies to keep, but mine are losing colour. Any idea how to reverse this, anyone?

Lighting could be the cause. I assume its not lumi green sP. Lumi GSP is easy to maintain the green.

[christan1959]

Dosing: I do 20% water change weekly. You think water is lacking in iodine and trace? In that case, I might stop using activated carbon.

Lighting: I use 4 HO T5's (two whites, two blues) for 60 litre tank. Too bright? Too dim? The neon GSP still holding out, but the "normal" GSP losing colour.

My xenia (specie with a thick stalk) ain't doing well either. But the "normal" xenia (polyp type) doing well.

Funny.

[solasido]

Hi bro, how to differentiate lumi and non-lumi star?

Do we put them under blue lighting to compare the luminosity or it is visible bare eye on daylight lighting?

I am still trying to figure out if my "Bali star" coral is a lumi or non lumi star polyp.

[christan1959]

lumi GSP is obvious to naked eye under normal lighting.

[Zoid]

I think its mainly due to lack of light, i've has similar issues before with most gsp either loosing color or not opening up properly.

If you want the green to stand out more, i suggest you add another tube or 2 of blue light and move them to the top of the tank in good flow and light..