Does my clownfish have ick?

reefernoah

Community Member
View Badges
Joined
Feb 12, 2026
Messages
52
Reaction score
10
Location
Michigan
Rating - 0%
0   0   0
I’ve noticed these white spots on my clown, it’s all alone in the tank, how should I proceed? It’s been eating normally
20260706_231217_E2A17C8F-A967-4CA4-AFA7-3F4E334CC5F2.png


20260706_231217_73E4CF1B-FFCD-44DE-A5C3-5A0A827A12EE.png
 

vetteguy53081

Well known Member and monster tank lover
View Badges
Joined
Aug 11, 2013
Messages
108,443
Reaction score
243,732
Location
Wisconsin -
Rating - 100%
17   0   0
I’ve noticed these white spots on my clown, it’s all alone in the tank, how should I proceed? It’s been eating normally
20260706_231217_E2A17C8F-A967-4CA4-AFA7-3F4E334CC5F2.png


20260706_231217_73E4CF1B-FFCD-44DE-A5C3-5A0A827A12EE.png
Based on size and location, this appears to be ich and you will need to place fish in Quarantine tank and treat with Coppersafe or Copper Power at therapeutic level 2.25 for a FULL 30 days (do not interrupt this 30 day period) monitored with a Hanna Brand copper test kit- No API brand. Also monitor Ammonia levels while in quarantine with a reliable test kit and add aeration during treatment using an air stone. All other fish in with it should also be removed as they have also been exposed to the parasites and placed in quarantine tank.
The display tank will have to be kept fishless (FALLOW) for 6-8 weeks to assure the existing parasites go through their life cycle without a host fish and die off. Inverts and coral can remain in the display (not treatment) tank during fallow period.
A quarantine tank can be as simple as a tank from a second hand store, a Rubbermaid type tub or a starter kit from Walmart which most of the needed essentials.
 

Reef Jedi

Valuable Member
View Badges
Joined
Jan 21, 2018
Messages
1,780
Reaction score
4,284
Location
Erie, CO
Rating - 0%
0   0   0
Based on size and location, this appears to be ich and you will need to place fish in Quarantine tank and treat with Coppersafe or Copper Power at therapeutic level 2.25 for a FULL 30 days (do not interrupt this 30 day period) monitored with a Hanna Brand copper test kit- No API brand. Also monitor Ammonia levels while in quarantine with a reliable test kit and add aeration during treatment using an air stone. All other fish in with it should also be removed as they have also been exposed to the parasites and placed in quarantine tank.
The display tank will have to be kept fishless (FALLOW) for 6-8 weeks to assure the existing parasites go through their life cycle without a host fish and die off. Inverts and coral can remain in the display (not treatment) tank during fallow period.
A quarantine tank can be as simple as a tank from a second hand store, a Rubbermaid type tub or a starter kit from Walmart which most of the needed essentials.
always solid advise @vetteguy53081! I’ll add a small live to that. If the starter kit comes with a filter that has carbon in it, take it out. You don’t want to run carbon during a copper treatment.

I also agree it’s ich and the above treatment is the best course of action. It seem daunting to do but it’s the only way to save its life and a QT actually really easy to set up.

FYI Seachem ammonia alert badges work well in QT tanks as a quick glance indicator.
 
OP
OP
R

reefernoah

Community Member
View Badges
Joined
Feb 12, 2026
Messages
52
Reaction score
10
Location
Michigan
Rating - 0%
0   0   0
I’ve noticed these white spots on my clown, it’s all alone in the tank, how should I proceed? It’s been eating normally
20260706_231217_E2A17C8F-A967-4CA4-AFA7-3F4E334CC5F2.png


20260706_231217_73E4CF1B-FFCD-44DE-A5C3-5A0A827A12EE.png
Based on size and location, this appears to be ich and you will need to place fish in Quarantine tank and treat with Coppersafe or Copper Power at therapeutic level 2.25 for a FULL 30 days (do not interrupt this 30 day period) monitored with a Hanna Brand copper test kit- No API brand. Also monitor Ammonia levels while in quarantine with a reliable test kit and add aeration during treatment using an air stone. All other fish in with it should also be removed as they have also been exposed to the parasites and placed in quarantine tank.
The display tank will have to be kept fishless (FALLOW) for 6-8 weeks to assure the existing parasites go through their life cycle without a host fish and die off. Inverts and coral can remain in the display (not treatment) tank during fallow period.
A quarantine tank can be as simple as a tank from a second hand store, a Rubbermaid type tub or a starter kit from Walmart which most of the needed essentials.
Can I use the Hanna Instruments Low Range Copper Colorimeter - Checker HC - HI747 instead of the high range?
 

vetteguy53081

Well known Member and monster tank lover
View Badges
Joined
Aug 11, 2013
Messages
108,443
Reaction score
243,732
Location
Wisconsin -
Rating - 100%
17   0   0
Can I use the Hanna Instruments Low Range Copper Colorimeter - Checker HC - HI747 instead of the high range?
As long as it measure up to 3.0ppm range
 

Jay Hemdal

10K Club member
View Badges
Joined
Jul 31, 2020
Messages
37,987
Reaction score
37,980
Location
Dundee, MI
Rating - 0%
0   0   0
Can I use the Hanna Instruments Low Range Copper Colorimeter - Checker HC - HI747 instead of the high range?

The range of that meter is too low to used with amine-chelated copper meds. You can try using it by diluting your sample with distilled water to get it back into range, and then multiplying your results by the dilution factor. However, IIRC, the Hanna web site says the HR meter is for freshwater and marine testing, but the HI747 just mentions freshwater.
 

Dogeatbird

Active Member
View Badges
Joined
Sep 30, 2025
Messages
146
Reaction score
51
Location
Denver
Rating - 0%
0   0   0
Another thing to consider is that running the existing system fish less, doesn’t mean that everything goes idle. Still add a small amount of food, maintain water parameters in the FALLOW tank.

also consider mixing water with copper dose in an amount that gives a water change in reserve.

Ideally this allows for a consistent application of copper. Instead of mixing water and dose as needed.

Use of pvc or other none porous objects to provide shelter to OT patients.
 
Last edited:

MnFish1

10K Club member
View Badges
Joined
Dec 28, 2016
Messages
26,964
Reaction score
24,673
Location
Midwest
Rating - 100%
2   0   0
Another thing to consider is that running the existing system fish less, doesn’t mean that everything goes idle. Still add a small amount of food, maintain water parameters in the FALLOW tank.

also consider mixing water with copper dose in an amount that gives a water change in reserve.

Ideally this allows for a consistent application of copper. Instead of mixing water and dose as needed.

Use of pvc or other none porous objects to provide shelter to OT patients.
Just so its clear for the OP- what you mean (I think) - is when he or she is doing a water change, that lets say they take out 5 gallons with a copper level of 2.5, they should add 5 gallons of water with a copper level of 2.5, rather than fresh water.

Depending on what one has in the display tank, adding food is likely not necessary. It's important, if you do this, to make sure that the nitrates are not rising too much. Especially in a fish only tank, in fact, many of the bacteria do 'go idle' and when fish are re-added, they should be fine. In addition, it is also possible to add some bottled bacteria like Fritz 9000 as an insurance policy.
 

TOP 10 Trending Threads

Back
Top
Home
Post thread…
Market
What's new