ID help please

J

jcaulley

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Mar 11, 2004
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Eglin AFB, FL
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Can someone help me with an ID on these items? The first one looks like a cocoon. It looks almost like a spiders egg sack with an opening at one end. It came in on some caleurpa that I bought and is all over my refuge and is now spreading to my main tank. The pictures aren't great but these are hard to get a picture of.

cocoon.jpg
 
I don't have any idea what this is. It is attached to the side of my rock and it kind of looks like a venus fly trap. It hasn't moved or grown from what I can tell.

green.jpg
 
the cloudy picture is a sponge one of the glass sponges if I'm not mistaken. They spread around but won't hurt anything at all. The real clear picture might be a majamo ,"sp" anemonie but, I'm not 100% sure,"never been cursed with them." I hope not but, if it is get rid of them quick!
 
One last one. This algae started growing all over my tank a couple weeks ago. It started as a really deep green and now I am starting to get alot of burgandy colored stuff. I haven't tried touching it but it looks pretty slimy. It hasn't started growing on the rocks but seems pretty agressive on the sand. Anyone got an idea what might be causing it or how to get rid of it?

algae.jpg
 
Does anything eat the sponges so that I don't have them covering everything? They seem to be reproducing pretty well.
 
yup, that one's cyano bacteria, "red slime algae". all you should need to do is increase your water flow towards your sand bed. Just curious how long do your run your lights if your tanks just starting out there isn't really any reason to run them for more than a couple hours a day. That will cut back on the nasty algae until some of the extra nutrients in your water are absorbed. Are you using ro water?
Chris
 
Those sponges you posted really won't. Most of the time they tend to live under live rocks etc. Also they will go through an initial bloom and then will pretty much fade away. If they are what I'm thinking that they are they use silica in their skeletons and as it's exhausted from your water it should be a limiting factor on their growth.
hth
Chris
 
I run my lights for 12 hours a day. The tank has been up since february so it is still pretty new. I use ro water that I get from a dispencer at the grocery store. The silica idea makes sense. I had to use regular play sand in my refugium so it probably had alot of silicates in it.
 
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