Need help!

[vincent843]

Hello everyone,

I hope I don't have to post pictures, otherwise I have to go find tools to resize the pictures first. Anyway, I have 2 questions:
1- I have one brown brain corral, (I think), the days before I change water( I change every week), it kinds of open a little, after I changed water, it opens like a baloon. I just have it recently, I just notice it acts like that for a few weeks. Can some one explain?
2- I have some little balls, most of them are green, couples are pink, starts very small, now grow like a marble size. Could you identify them? good, bad?

Thanks, Vincent

 

[petoonia]

The little balls could be bubble algae, look for some pics online to help get an ID.
Sorry cant help you with first question.

 

[sir_dudeguy]

i dont know about the first one either, but i second the bubble algae idea...do a google image search for "bubble algae" and it should show up.

 

[vincent843]

Here is the picture, hope they will help you to help me

thanks, vincent

 

[sir_dudeguy]

ok from the pic it looks more like a sponge, not bubble algae. Sponges can grow in all shapes (and colors and sizes ) and the pic is too fuzzy to make a perfect ID, so i'll put a link to some bubble algae and just compair it to the pics.

bubble algae
http://images.search.yahoo.com/sear...e&fr=FP-tab-img-t-t500&toggle=1&cop=&ei=UTF-8

The second one tho isnt a brain i dont believe. I think my lfs has those for sale listed as "fungia plate corals"...i'll look for a link for that too.

Heres the fungia coral...
http://images.search.yahoo.com/search/images?p=fungia+plate&ei=UTF-8&fr=FP-tab-img-t-t500&x=wrt

These are a few dif. brain corals
http://images.search.yahoo.com/search/images?p=brain+coral&ei=UTF-8&fr=FP-tab-img-t-t500&x=wrt

 

[chrismunn]

is that a brain, or is it a PLATE? fugia....hmm?
i would say thier sponges at first glanca of the hard to make out picture. and the most common bubble algae has a name. Valonia

 

[chrismunn]

*fungia

 

[vincent843]

So it is fungia, what about the behavior that I asked, is it normal?
and first pics is not buble agea, could be sponge like you said. Is it good or bad?
thanks, vincent.

 

[sir_dudeguy]

so its like inflating and deflating? if so, its just moving from what i hear.

 

[alde]

That is normal behavior for the plate coral. Sounds like it's just doing what they do. The sponges are safe too. They can be some really cool colors.

 

[sir_dudeguy]

ya and i also hear that sponges can be beneficial? is that true?

 

[alde]

<a href=showthread.php?s=&postid=8073820#post8073820 target=_blank>Originally posted</a> by sir_dudeguy
ya and i also hear that sponges can be beneficial? is that true?

They are filter feeders and may help in that respect. These guys are so small though that I don't think they would have any real affect.

 

[vincent843]

What is filter feeder, I heard this term a lots , but don't understand at all?
what do you feed coral? I really want to know this issue, I have not feed them at all.
thanks.