Corals Dying

[Burray]

I have been feeding Hikari Bio Pure Spirulina Brine Shrimp Frozen for about 6 months. My tank was beautiful, my corals were growing and now my Xenia is just about gone and I have lost several of my corals. I still have my finger leather and toad stool are hanging on but my polyp seems ok for now. My fish look good, acting fine but my flasher wrasse tried jumping out twice when feeding in the past month. Does anyone think the food has anything to do with my corals ?

My last water change was on 12/15/22 and my parameter were
Salt. 1.021
PH. 8.0
Nitrite. 0
Nitrate. 20
Ammonia. 0.025
Alk. 6.7
Mag. 930
Calcium. 330
I am planning on doing another water change today but is there anything else I can do.

 

[Jekyl]

Salinity low, alk a tad low, magnesium low, calcium low, and no phosphate reading. With parameters being off like this I'm guessing the tank hasn't been stable. Which is what corals need.

 

[fishski13]

To start your salinity is low and for most reef tank is 1.025.

And as mentioned above other parameters are also low. Do you have any lps or sps coral? If so alkalinity, calcium, and magnesium being low is the main culprit on why they are not doing good.

 

[DiefsReef]

you need that water change and get those params up

 

[vetteguy53081]

I have been feeding Hikari Bio Pure Spirulina Brine Shrimp Frozen for about 6 months. My tank was beautiful, my corals were growing and now my Xenia is just about gone and I have lost several of my corals. I still have my finger leather and toad stool are hanging on but my polyp seems ok for now. My fish look good, acting fine but my flasher wrasse tried jumping out twice when feeding in the past month. Does anyone think the food has anything to do with my corals ?

My last water change was on 12/15/22 and my parameter were
Salt. 1.021
PH. 8.0
Nitrite. 0
Nitrate. 20
Ammonia. 0.025
Alk. 6.7
Mag. 930
Calcium. 330
I am planning on doing another water change today but is there anything else I can do.

You just identified your own issues- You will want to SLOWLY tweak some fo your numbers which is insufficient.
Salt. 1.021 - Bring to 1.025 slowly
PH. 8.0 best at 8.1-8.3
Nitrite. 0 - disregard this unless above 100
Nitrate. 20 - Getting high. Less food portion and increase water changes
Ammonia. 0.025 - Acceptable high but get this reduced again with water changes
Alk. 6.7 - Should be 8-11 dkh
Mag. 930 - Very low - 1300-1350 best
Calcium. 330 - Very low affecting alk - Should be 400-450

What test kits are you using ?

 

[Mr. Mojo Rising]

i feed that same food to my tanks, they are fine, so its not the food.

I feel like there is a big chunk of information missing, you say your tank was beautiful, then all corals are dying. What happened in between, did you stop water changes, did you start dosing something?

 

[Burray]

I have been using salifert test kits. The only changes has been water changes every 2 weeks instead of weekly but the tank has been up for 1 yr 7 months and was doing so well I thought I could reduce the changes and the food of course was the other.

 

[Burray]

You just identified your own issues- You will want to SLOWLY tweak some fo your numbers which is insufficient.
Salt. 1.021 - Bring to 1.025 slowly
PH. 8.0 best at 8.1-8.3
Nitrite. 0 - disregard this unless above 100
Nitrate. 20 - Getting high. Less food portion and increase water changes
Ammonia. 0.025 - Acceptable high but get this reduced again with water changes
Alk. 6.7 - Should be 8-11 dkh
Mag. 930 - Very low - 1300-1350 best
Calcium. 330 - Very low affecting alk - Should be 400-450

What test kits are you using ?

Thank you

 

[AV corals]

I have been feeding Hikari Bio Pure Spirulina Brine Shrimp Frozen for about 6 months. My tank was beautiful, my corals were growing and now my Xenia is just about gone and I have lost several of my corals. I still have my finger leather and toad stool are hanging on but my polyp seems ok for now. My fish look good, acting fine but my flasher wrasse tried jumping out twice when feeding in the past month. Does anyone think the food has anything to do with my corals ?

My last water change was on 12/15/22 and my parameter were
Salt. 1.021
PH. 8.0
Nitrite. 0
Nitrate. 20
Ammonia. 0.025
Alk. 6.7
Mag. 930
Calcium. 330
I am planning on doing another water change today but is there anything else I can do.

Calcium , mag and alk are very low. Calcium at 330 is essentially making your corals starve. Push it to closer to 475. Your mag levels are extremely low. 1400 at best. 1600 is my personal level. Your alk needs to range from at least 7-8. Also your salt levels are very low. 1.026 is ideal /35ppm. Hope this helps. Best of luck.

 

[Mr. Mojo Rising]

who knows? maybe you somehow got a bad batch of food, maybe the LFS let it thaw for a week and then put it in the freezer, who knows? I would stop feeding it and see what happens.