not opening

I have an AquaMedic Yasha (30L), 30cm x 40cm x 30cm. Parameters: Specific Gravity: 1.025 Temperature: 25-26C pH: 8.1 kH: 8.3 dKH Magnesium: 1350 ppm Calcium: 440 ppm Phosphate: 0 ppm Nitrates: 0.5 ppm Ammonia: 0 ppm Iodine: 0.6 ppm My setup: Aqua Medic Turboflotor Blue 500 Jebao WP10...

Hey so I'm new to the whole salt water tank keeping but have kept fresh water tanks with no problems for the past 15 years. So about two months ago I started the salt water tank and cycled it. The cycle happened quick and was short but about a week later when the perimeters were zero I added a...

no room for all of this ..its over 50 heads in a biocube

Hi, I'm new to this forum and to reef keeping in general. I set up my 20 gallon long 7 weeks ago and last week i felt like my tank had finally matured enough to purchase a beautiful 4 headed frogspawn. After I acclimated it, the frogspawn opened half way up over night. I waited a week and it...

About 3 weeks ago I bought a hammer coral. It has been acting normal(opening during the day with sweeper tentacles and closing at night). About 1 week ago I added a pair of clownfish that seem to host to it immediately. Over the past week the hammer coral has not been opening much. I thought the...

Hey guys, I've had a 29 gallon system running for about half a year now, and I'm having some problems with corals. I have several different Zoa colony's, including an eagle eye colony, about 10 fire and ice Zoas, a mean green frag that I've had for about 4 months now, a button polyp colony that...

Hi, i bought a 2 toadstools about 4 days ago and the owner of my LFS said it was one that had flower-like polyps. The tank it was in had a powerhead pointed right at it and the owner said that was why they were closed. now its in my tank with lower flow on it and the polyps still havent opened...

Hey everybody! my green ricordia isn't opening but all my other corals including my trumpet, frogspawn, zoas, and even my anemone are doing great. All water params are good except maybe nitrates are 5-10PPM as i havent done a water change in a week and a half. I dont think the nitrates are a...

Hey. So as I mentioned in another thread i recieved some amazing stuff from reef-a-holic on ebay yesterday including a pink/green spiny cucumber. So since i put him in hes in the middle of the front wall where theres high flow. I have only seen him open up his tentacles once. the only reason im...

Our green stars have been happy and healthy. They have been spreading nicely...but they have not opened in about a week so far and now turning brown. Parameters are good. Light is good. Flow is good. Only a couple sponges are new additions. There's even another rock with them that is still...

I have had my psp for a while now, i changed the flow a little bit because i bought a bta, now they will not open, and i have noticed a greenish algae that is growing on them? what is this? what should i do/:confused: