Atoll M60 Part 2

Volume 24 Gallons
Make Fluval
Model M60
Lighting schedule





10 Fish

4 Blue/Green Reef Chromis Chromis viridis
Naoko's Fairy Wrasse Cirrhilabrus naokoae
Ocellaris Clownfish Amphiprion ocellaris
Purple Firefish Nemateleotris decora
Red Head Solon Fairy Wrasse Cirrhilabrus solorensis

29 Corals

Acropora Coral - Joe The Coral Acropora sp
Acropora Horrida Acropora horrida
Acropora nasuta - Tryee Pink Lemonade Acropora nasuta
Astreoid Cyphastrea Cyphastrea sp
Birdsnest Coral Seriatopora hystrix
Blue Red Lobo Lobophyllia hemprichii
Button Polyp Protopalythoa sp.
Green Montipora Undata Montipora undata
Hammer Anchor Coral - Yellow Euphyllia ancora
Hawaiian Eyes Palys sp sp
Lordhowensis Coral Acanthastrea lordhowensis
Montipora Sunset Montipora foveolata
Neon Green Leptoseris Neon Green Leptoseris
Orange Crush Acan Echinata sp sp
Orenji monti Orenji montipora
Purple Montipora Coral Montipora digitata
Red Eyes Cyphastrea Cyphastrea sp.
Reefraft Aussie Gold sp sp
Watermelon Chalice Tyree LE Watermelon Chalice

1 Invertebrate

Green Bubble Tip Green Bubble Tip


On average you perform a 28.6% water change every 29 days.

0% total water change in October.

0 activities in the last year

Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep Oct

Disasters & Regrets

I never got around to filing up the detail sections when I started the tank. Anyways after 6 months of running my tank crashed.


I was away from home and came back to a disaster.The issue is a siphon on the doser which dumped ALK (around 75 ml) into the tank pushing ph to over 9.5.

Of the 6 fish - 3 were dead and unfortunately I cannot find the other 3 so I presume all 6 died. All Acro's have STNed completely so not sure how may will bounce back, Acans, lepto, Zoa, hammer, green monti will make it I think. I have some corals which grew into the rocks so pretty much they will not make it. I have taken all corals which I could and put in my 6 gallon tank.

I had the doser and the containers above the water line of the tank so that may have caused it. The end of the dosing pipe is at least 1 inch above water when the return is turned off and the back chambers fill in.

I don't suspect it is a doser issue - since I tested it 10 times before i set it up. I just tested now and it still works fine. I am not sure how it could siphon.

Action Plan:
NOT Giving up yet : I will be pretty much starting from scratch so I have siphoned the back chambers, cleaned equipment etc.
I have changed 10 gallon of water and will using Seachem salinity for stability while it goes through these changes. Not sure if it gong to be a new cycle but will watch.


only 1 fish survived and all SPS and majority of the LPS did not make. I changed all the water slowly overtime and have overtime slowly replaced the sand. I used prime to help if any mini -cycle but I did not observe any. I was able to get the tank back to a stable state after 3 weeks where parameter remained stable.

The following survived:
FISH - Purple Firefish
SPS - None
LPS - Zoa, Acan and lepto.