Corals dying over night....

[ricestudios]

ok so like this morningi was feeding one of my lps and tonight its all dead. the skeleton is all exposed and there isnt any tissue at all. also this isnt the first time. in the past days i had 2 frogspawns go too. i already did a water change a week ago. someone help?

[BigAir]

Did your salinity get way out of hand?

[july865]

water perameters/quality?
recent additions?
chemical warfare/stinging? who's next to whom?
adding suppliments?

[reefermadness]

give more info on water paramiters (ph,salinity,alk,mag,temp constant?,NH4,NO2,NO3,lighting,watter changes?Livestock?) start witht he basics then go from there..

[Flamehawk]

hmmm...no tissue or any sign of it left? Maybe something in your tank is eating them?

[reefermadness]

i agree with flamehawk if your coral died overnight that is very suspicious.......is your girl friend or wife spraying cleaning products around your tank? My friend lost corals bc his gf sprayed hair spray around his tank once.

[CNCreefer]

Also make sure any powerheads are not blowing directly on the corals. I lost one that way before.

[Fishaholic]

I just had my clam dissapear overnight andn all the perams are great, mabye something ate the corals. I have had hermits go after food and damage corals before and then the coral dies from the damage

[ricestudios]

ok

90 gallon tank 20 gallon sump and 7 gallon fuge

Water:
pH = 8.0
PO4 = 1.00 - 0.33
NO2 = 0
KH / ALk = 7.0 / 2.51
NH4 = 0.25
Salinity = 1.021
Temperature = 78°

Lighting: 4pm-12am

Water changes every 3 weeks.

feed everyday.
clean skimmer weekly and change the filterbag every 2 weeks.

[Live Water Aquariums]

I have no idea what's wrong, but you could try a polyfilter in the sump just in case some foreign substance did get in the water. Are things getting better or worse? Have you changed anything or done anything different lately? Good luck, sometimes things can rebound more then you would expect.

[ricestudios]

already have a polyfilter in the direction of flow to the return pump. i did add a fish... its a purple yellow one. i dont know whats it called but its purple from the head to the midsection and yellow from the mid the tail. its not a royal grama because that fades in the middle. this one is a solid change of color. i dont know whats it called.

[MrKrispy]

do you usually keep your salinity that low?

[ricestudios]

its between 1.021 and 1.026

[Elanglio]

Does the temp in your tank drop alot at night?

[ricestudios]

temp stays constant 78°

[MrKrispy]

its between 1.021 and 1.026


ummm it jumps around like that all the time? I forget what size tank you have but when that has happened to me at least one monty or acro started to die (usually super glue saves them once the S.G. is stable).

[IgotCrabs]

bicolor dottyback pseudochromi?