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2" is little. I wish I had a pic of the two footer I pulled out of my tank. It took up a good portion of the coke bottle I put it in...

Thanks for the help all, how about this snail? :)

Guess I should have said it was aquacultured rock from the gulf, sorry bout that! Thanks for the replies so far. Nobody knows what kind of crab #4 is? As far as getting em lined up, I just pushed them next to each other with the end of a turkey baster, and they cooperated for a bit, until the...

Got some new LR today and these guys were in it. Wondering what they are and if they are reef safe. Thanks! PS: I can get better pics if necesary...

Actually with 47ohm resistors there will be less than 30mA going through each branch of the circuit. With this current each resistor is only dropping 90mW of power, so the typical 1/4 watt (250mW) resistors will be fine. The LEDs are dropping 45mW of power, for a total of 675mW like you said...

Just tie all the G's together :) All the grounds should tie to the negative side of the power supply. I should clarify that I meant you can't run the LEDs in paralel off of one resistor. But if each LED has it's own resistor you are fine. O----|----|----|----|----| Positive Lead...

LEDs do not work like light bulbs, you need the resistor to regulate current. If you overdrive them you will shorten their lifespan. There are 2 things I need to know to tell you what you need to do. 1: Is the power supply regulated or unregulated? If it is unregultated it may be putting out...

Thanks for the responses everyone! I guess I will just keep an eye on them. I can see dark patches on the surrounding polyps where they are being stung, but it doesn't look too bad.

They look like syconoid sponges to me. I have them all over in the dark, high flow areas. :)

Found these little guys in my tank. They didn't look like the typical aiptasia. What do you guys think? Thanks! Jason