You'd think I would listen to my own advice: Be patient and always "measure twice before cutting once". Anyways, I did neither. Last Thursday I decided to begin a Levamisole regimen to treat my tank. Rather than going back to the original post I looked at Aqualund's post above where he said:
and the max I could go is 8 teaspoons? or 40grams?
And then worked backwards to say that would equal 2 tsps per 500 gallons or for me 3 teaspoons for 750 gallons. I did not check to see that the original recipe was for the equivalent of 1 tsp per 333 gallons:
Potion Prep - Mixed up gently packed-and-leveled 1tsp of Phohibit (Levamisole Hydrochloride) in a 500ml water bottle filled to the top with RO. . .
Dosed 1.5 ml per gallon of water volume.
500/1.5= 333 1 gallon doses so 1 tsp treats 333 gallons and I was planning 1 tsp per 250 gallons, BUT here's where it gets interesting and I'm not even sure what I was thinking, but I did it anyway.
This all happened on Thursday Dec. 11th. First I dissolved 3 tsps of Prohibit in 1 liter of tank water. Next I dumped ALL the solution into my display tank that has 240 gallons of volume. That was around 2PM in the afternoon. Before you all groan in dismay let me cut to the chase by saying I didn't lose anything except pods, worms, and snails BUT the reef was NOT happy for the next 24 hours.
As soon as I dumped the solution into the reef all the fish hid and started breathing fast. Within seconds the water was full of amphipods floating around dead and soon after several flatworms started to appear floating around in the water. Shortly after that a couple bristleworms crawled out of the sand and flipped over dead. Next my sand sifting snails came up for air. They didn't die but they came out of the sand. Lastly my turbo snails started dropping off the walls. Not all of them but probably about 1/3 of my 40 or so snails. Of those that fell some recovered the next day and some did not. Lastly a couple of my SPS started to slime ever so slightly.
I went into full panic mode. I'm thinking I just killed my entire reef. Suddenly I felt like the dumbest reefer on the planet. I did, however, remain calm even though my guts were twisted up in a bunch. I came up with a plan. 1) Leave the carbon running and the skimmer turned on. 2) Wait four hours for the mixture to be 100% circulated in my entire system and then do a 50% water change. 3) Remove and replace my carbon (2 cups) on the next morning. 4) Do another water change the following day of my standard 20% amount. (That would be 48 hours after the dose).
So I did all that (sort of . . . see my
tank thread for the outrageous details of what happened the next morning that is unrelated to this thread). The corals stopped sliming after the 50% water change which I did at 6 PM that evening. The fish did not eat the first night or the morning after. The following evening after the 50% water change and running fresh carbon for 12 hours most of the fish were back out and eating except for my Hippo Tangs that hid for another day. By 48 hours after the initial dose all appeared normal.
Today I am feeding my corals amino acids and Reef Snow because I am assuming with the massive die off of pods I have lost a great deal of biodiversity. My next task is to setup a separate QT tank and try to stock it with fresh bought premium live rock and macro algae in the hopes of building a new pod population. I plan a second dose of levamisole using the 1 tsp per 333 gallon recipe and this time I will distribute it evenly throughout my system. My system is slightly unusual in that I was able to dose such a heavy amount into the display and then the normal circulation immediately started diluting the dose to the "normal" amount. My display tank has a turnover of about 2 times per hour. The two observations I would make were that the existing AEFW poplulation seemed to immdediately die and their bodies even dissolved and the reef seems to have survived even though everyone from fish to coral was clearly heavily distressed at first.
I do not recommend this technique be copied by anyone because I can't say how close I was to losing it all, but I can say the reef was under very bad stress. Now the question is will the AEFWs reappear?
Anyways, there's my story. Standby for more in the coming weeks.