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Do they make something like a check valve for pvc, or something that would limit the flow of water to only one direction? The application would be for placement after the pump , to eliminate back flow from the tank into sump in case of a loss of power. This would be on a 29 gallon tank, btw...

What is the procedure for adding more live sand to an established tank? Would reg. live sand from LPS or the bagged live sand be better? Thanks for any input.

While relocating a feather duster, the feather radiole fell out of its tube body. The feather radiole seems to be ok. It has since opened back up. Is this ok? Will it grow a new tube?

I purchased a percula clown this afternoon and instead of going to the bubble tip anemone (which I was informed that it would) the fish is gravitating towards the pumping xenia. It swims right through it with no apparent side effects. Is this a problem?

Thanks for the info everyone.

top side about 2in in diameter. I have had it about 3 months

under side

I have a red sea star and a sand sifting star.

Woodstock- what is the best way to ship them? Maybe I can catch some and send you a present.

They do look like the ones in the pic. There is one big grey one and a bunch of little ones with orange-red like markings. They are doing a very good job of keeping the tank clean. My concern is that I only have a 24 gal tank and I have Alot of the creatures and they seem to be consuming my...

Iam experiencing am outbreak of little slug like creatures at night. About an hour after the lights go out about 50 or so start slithering out. Besides manually removing them, what is the best remedy?

Put a coralife super skimmer in my sump and now everything looks a lot nicer. I am still working on the art of photographing the tank so just bear with me. All comments are welcome!

Pumping Xenia is my favorite to watch.

Left side close-up

Full Tank

A few new pics