Recent content by cathbad

Update. For the past two nights, and once or twice several nights ago, I have seen two individual legs, in addition to the half pictured above, crawling about the tank. They seem to respond to food but there is no disk attached so, presumably, there is no way for them to eat. They come out...

This is the best so far. The disk looks to have been cleaved almost perfectly in half. In the red box is an edge-on view of the disk. It has been like this for about a week that I now about and it does seem to be a bit more sluggish but otherwise fine. Thanks for the help.

I have what Ophiura identified as a possible Ophionereis reticulata (about five years ago). It has been extremely durable but now has split into two apparently functioning "half stars" which continue to navigate about the tank each night and eat. Could this be asexual fission or something I...

Does anyone know if 1/8 inch mirrored acrylic can resist the heat from up to 200 watts pc over a 20 long?

So many continue to refer to their lighting regime as the number of watts per gallon despite its relative uselessness. I have not, however, seen much, if anything, that is practical and relatively simple that quantifies lighting intensity with consideration to the tanks height. So here is what...

It won't. In freshwater or even low salinity it will probably disintegrate as the cells lyse as a result of the ionic difference between the fresh and saltwater. If you are wanting to use a refugium on a freshwater system try some of the fast growing stem plants such as anacharis, hygrophila...

I have sand collected from an aquacultured site in about 40 feet of water and it has particles ranging in size from <1mm to several cm, although most are <3mm. If I were to do it over I would probably use some type of fine, dry sand. It also is not always white, some of mine also has a grayish...

Anthony Calfo recommends to provide near minimum (my words not his) lighting and supplement with feeding. Basically, don't overdo the lighting and provide sufficient feeding to make up the difference.

Based on the first photo, particularly the head region, I would guess some type of planarian.

I had actually forgotten about this one. Apparently it was not very popular. I would like to hear (see) some opinions from all of you about what I should do. Thanks.

Thanks Bang. Vindicated at last.

Try a search for Phyllangia americana.

Thanks for the information. I'm not too worried about its "reef safeness"; after 18 months it has bothered nothing. I am mainly interested in its adult size. I will continue to try to get a pic of the disc but this guy is very cryptic. I lured him out with shrimp in total darkness just to...

It is a turkey wing, Arca arca.

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