Deinonych
New member
I would treat for 4 weeks at 75mg/g. Look forward to reading about your progress. Taking the skimmer offline is a good idea.
CP on reef tank
- Thread starter rog2961
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I would treat for 4 weeks at 75mg/g. Look forward to reading about your progress. Taking the skimmer offline is a good idea.
Alberta-newb
New member
I'm not sure if taking skimmer offline is good or bad idea? It certainly went crazy when I first dosed CP but with the die off of all algae I was happy it pulled out a lot of waste (skimate was quite dark considering how much was produced). I did keep track of how much came out (almost 5 gallons in 48 hrs) and redosed CP accordingly. The inability to measure CP concentration remains the biggest unknown with my experiment. Who knows how much is now in the live rock and substrate and how long will it stay there.
Still something I wouldn't consider on my main displays
Francis
There's no way of knowing how much CP the skimmer might be removing. The water in the skimmer cup is a given; but it may be removing far more than that. I would take the skimmer offline; or if you choose to keep it going, dose at 80mg/gal and hope for the best.
I'm not sure if taking skimmer offline is good or bad idea? It certainly went crazy when I first dosed CP but with the die off of all algae I was happy it pulled out a lot of waste (skimate was quite dark considering how much was produced). I did keep track of how much came out (almost 5 gallons in 48 hrs) and redosed CP accordingly. The inability to measure CP concentration remains the biggest unknown with my experiment. Who knows how much is now in the live rock and substrate and how long will it stay there.
Still something I wouldn't consider on my main displays
Francis
If your putting it back I see a valid reason to keep it running, Im just afraid the skimmer will cause it to lose effectiveness. I will report back on how it works on my display. From everything I've read it won't be that bad. If it leaches in it must leach out as well.
Alberta-newb
New member
That's the toss up, skim and possibly remove CP or not skim and load your tank with organics from dead algae and inverts? I'll continue to experiment with this tank 
Alberta-newb
New member
Well so far so good with my 90. Tang remains ich free, nuisance algae is all gone but the corraline algae appears unaffected. I did find 2 hermit crabs this morning that I failed to evacuate, but they both appear fine.
Skimmer is no longer going nuts and I am going to up the dosage later in the week.
Skimmer is no longer going nuts and I am going to up the dosage later in the week.
Similar to mine. I left a BTA in there by accident, removed it today and it seemed OK. My cleaner shrimp are unaffected, but everything has turned bright white. I've read on the UK forums that typically when done with treatment, multiple water changes, and running carbon cleans up the tank. There has been a reported case where CP was used on a dt that ultimately held LPS successfully.
I've left my skimmer off for the moment, will redose in 4-5 days with WC.
Alberta-newb
New member
Update, my fish are all ok with no visible ich however still not confident it has been eradicated. I do believe the CP has broken down due to light and/or skimming as the tank is now going through an algae outbreak. Just a bright green film algae, not hair. I am going to do a large (50%) water change and start another round of CP today.
My guess is it's more the skimmer than your lights. If you are getting algae, then the CP is totally gone. I dosed CP in a "permanent QT" years ago that had u/g filtration, crushed coral substrate, dead coral skeletons, etc. I ran carbon, lights, did WCs... never could get algae to grow in that tank again. I wish I had thought of using a skimmer (I don't have a UV); because I finally just broke the tank down.
Alberta-newb
New member
Thanks HumbleFish, that's good information. I will try this round with the skimmer off and actinics only.
Alprazo stated this on the first page of the CP thread:
So if the polyfilter/carbon doesn't work; try a UV (if you have one), and let us know what happens.
If you get algae to grow, the CP is gone.
i3oosted
New member
It never effected my hermits or crabs, killed snails almost instantly, and it will eventually kill a cleaner/blood shrimp but they can last a couple weeks. You will see them get progressively timid and stop moving, you will start seeing black lines in their shells, then they will die from 2-4 weeks.
