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What is "ionic calcium?" When I try to look it up using a search engine I'm directed to a zillion health supplement sites. This is supposedly the kind of calcium in the calcium supplement I use in my reef tank.

My main purpose in posting this is to put a link to it in my signature, but if you want to discuss it, that'd be cool. Keeping It Simple Since 2005 I enjoy reading all kinds of tank-build threads, from low-tech to high-tech, and learning from fellow reef-keepers who go about it...

One of my chromis dashed out from behind a rock at feeding time this morning, twirled a little, and went stiff. Seemed perfectly normal yesterday. No readable ammonia, nitrites or nitrates; pH 8.0 at 11:30 am, alk 9.0. All the other fish appear to be fine; corals look normal. ???

I read the sticky, and it's very informative, but I still have a question: is there a "lumens per gallon" guideline for determining how many T5's (ho) are needed for a 24" high tank?

Is it okay to move all the live rock, corals and fish from my 15 into my 55 at once, or should I do it over several days or a few weeks? Both tanks are in my dining room, a few feet apart, and nothing will be exposed to air. I'll have the water parameters matching. Opinions?

Initially I thought gnats were getting into the house and drowning in the new mini-reef since I started finding what resembled several dozen small dead insects on the water each morning. However, my nano tank is in the same room and there were no gnats in it; neither have we been swatting at...

Hi: I'm posting my tank info here so that I can link to it in my signature. (Mods, if it needs to be elsewhere, let me know.) 55-gallon glass tank; Hagen GLO dual T5 ho light fixture w/ 1 Marine Glo and 1Power Glo tube; Seio 320 pump, Seio 530 pump; power filter for GAC and water movement...

:woohoo: I get to upgrade from my 15-gallon nano to 55 gallons! (Permission granted by the hubby on March 10. Began project on March 11. :D Here are the first pictures: My 10-yr-old former freshwater tank. Thank goodness, no leaks. This was taken March 20, the day...

Hi, I'm Dianne and I am a reef addict. My husband is in danger of joining me; he recently suggested that we turn our former freshwater aquarium (55 gallon) into a mini reef. He actually likes my 2.5 year-old nano reef! The 55 now has live sand, live rock, saltwater, algae and as of today, 9...