Totally confused, any ideas?

[reefsahoy]

I've been keeping sps for some years now, so i'm not a newbie. I have a nano and i checked the corals one night and all corals looked good, wake up next morning and the water was cloudy and a birds nest was completely white! I checked alk, ca, mg and they were 10, 420, 1300 respectively, thus normal. I did a 30% water change and by the end of the day i lost a monti cap, birds nest, orange digi, and stylophora all turning completely white, while several other acros had polyp extension and colorful. I had not changed anything, added anything, done anything different the night before. I waited 2 weeks before posting expecting to lose everything. That didnt happen, the rest of the sps showed no sign of stress, are colorful and polyp extension. Parameters are all same as above. I'm totally confused as to what could have happened.

 

[rovster]

Sounds like what happened to me. Bacterial bloom?

 

[knukles55]

How small is that tank? And do you adjust your AC when you leave the house just asking because a tank on the smaller scale could heat up quickly assuming there's no chiller...... but either way I would expect you to lose your acros instead of montis if this were the case.. it is summer and hot after all

 

[reefsahoy]

No to the ac question. As far as bacteria, I don't think so. I use ro with salt mix. I did no water change for 2 weeks before.

 

[Rogger Castells]

what type of lights are you running Nick?

 

[reefsahoy]

Radion leds. But all the corals were doing good. I still like MH better but im doing a nano and mh would be too hot

 

[cubetank]

Going on a hypothesis what about toxic or extract of a coral?

 

[zoanutty]

Any leathers in the tank?

 

[reefsahoy]

No leathers in the tank, only softies are small amount of zoe's(they didnt die) and green star polyps (they didnt die).. I removed a australian torch, ora goni, and small clove polyps (they didnt die either). I dont know what other toxic extract could have happened as everything else is sps corals.

 

[Bandomo]

Nick, what about outside factors? Febreze, Fabuloso, scented candles, windex, etc.?

 

[AquamanE]

Sounds like what happened to me. Bacterial bloom?

are you carbon dosing?

 

[reefsahoy]

@bandomo, i use no kind of scented anything in the house, maybe i should tho! Lol. The corals literally turned from polyp extension to white in under 10 hours during my sleep. the other sps were still having polyp extension when i woke up and the birdsnest and others were almost white.

@aquaman, no carbon dosing. The only thing dosed are alk, ca, mg mixed in topoff water. I didnt do anything to the tank a week before this happened as i do water changes weekly on sundays and this took place on a friday and It couldnt be the house cleaner as she comes on saturdays. I have no kids in the house as they are either a college grads or in college and out of the house

 

[knukles55]

Stray voltage in that small amount of water?

 

[Daimyo68]

Stray voltage would be my thought also. Had the same thing happen to me years ago

 

[domination2580]

Not sure but I'd use activated carbon. Clears the water and makes it more blue and cleaner....

 

[mpfeiffer1]

What causes cloudy water? Bacteria is my guess as Rovster mentioned. Could easily had been caused by a dead snail in a nano. The only other thing that causes cloudy water is putting too much alk or calcium and/or something sturring up the sand like a goby or pistol shrimp. I would check your nitrates and phosphates as if something stirred up the sand and/or bacteria bloom will be seen in an spike of trates. One thing also to think about is having something on your hands while putting them in the tank. The worst is anti-bacteria soap,clorine based solvents, suntan lotion or lysol- just to name a few that will wipe-out corals really fast. Just Food for thought.

 

[domination2580]

Try using a uv sterilizer...it should help clear it up