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Quick question. Is slate safe in marine aquarium? Not even thinking at the time I put a piece about 5x6 inches in to make a cave. The tank is about 2 months old. Hope it ok because it at the bottom of about 120lbs of live rock. Not sure if this is the place to ask but do want to know if it will...

Not sure if this is a sponge or some jelly disease. Should I scrape or scrub it off?

Every thing was going good until I got a magnesium test. When I tested it was off the chart maybe somewhere around 1500 or 1600. So I did a 5 gal water change every 3 days and is still high and now my alk has dropped. here are my last results SG=between 1.024-1.025 Ammonia=0 Nitrate=0 Temp=78...

My hammer coral has three of these attached where the fleshy part ends on the stony part. Question is would this bother it much? It has not fully opened today and just noticed these on it and thought this could be why. Did see one on GSP when they were closed for a week. Says there reef-safe but...

Is it common or not for a coral to stay closed for several days. My GSP has bin closed for 3 days now without a single polyp open. The water checks out good with no change. The only change has bin moving the powerheads. One hermit was using him as a perch but did seem to be bothering it just...

I have had these 2 clowns for over a week now. They were both eating great, now the one on top is not eating. last 2 days mouth has bin open. has slightly labored breathing. Nothing visible on fish. Could it be flukes? Any other ideas or what I can do?

What would you say about a sally in a reef tank?

Noticed this starfish today,appears to have 6 legs pail pink in color anybody know what kind it is?

First set up with 5 damsels:grumble: After damsels out looks a little dif. but I like it any suggestions. I have 100lbs reef rock &17lbs LR. using 125 SS for skimmer Hammer& colt and 1 of 3 pajama cardnals hairy shrooms GSP Royal Gramma Ials have a 6 line wrasse but he seldom comes out...

I wanted to get some snails to keep algae under control but none of my LFS have the astrea, trochus,cerith or nassarius snails only turbo. The last place I stopped had a 5 in. sea hare.He suggested to get that and it would take care of all algae problems.Right now algae is not real bad and...

https://www.livingreefs.com/gallery/files/1/9/5/5/FSCN0003.JPGmy tank has bin running 4+ weeks 3wks with fish (those five damsels are now down to two)amonia,nitrites and nitrates are at zero.how much live rock can i add at a time?and with the 100 lbs "reef rock" will it be live rock in time if...

new member just looking for some people with some real smarts to the salt water& reef world