Chloroquine phosphate

[Mel666]

180 gl tank. Got velvet. Treated with Chloroquine Phosphate...no fish for 3 months. Green and coraline algae growing now....does that mean the CP is no longer active?

 

[ianwouters]

Coraline algae won't hurt your tank and for the green algae do you have turbo snails and hermit crabs in the tank yet?


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[Mel666]

I have nothing in the tank....worried about the CP killing inverts

 

[nereefpat]

CP isn't safe for inverts, but it does degrade over time and is sped up by heat and light.

I would run some carbon, and try a few cheap clean up crew type inverts as a test...maybe a couple cheap coral frags too.

 

[Mel666]

Ty for your help....I definitely need a clean up crew.......sooooo much algae.

 

[Dr. Reef]

Most like cp degraded over time but I would still do few water changes before introducing inverts.

 

[ThRoewer]

Ty for your help....I definitely need a clean up crew.......sooooo much algae.

CP kills algae. So if you have algae growing the CP has been depleted.
I would still run some carbon and maybe do a 50% water change - just for good measure.

 

[nematode]

most CP should be degraded if algae is growing, but not necesarily all of it. Depending on the relative sensitivity of the various organisms involved, algae growth could be a sign all is OK, or not. An Acropora might still be toasted by the water conditions even though algae grows fine.

 

[Uncle99]

CUC alone will not clean up algae. Crabs are quite useless IMO.
Manually pull what you can , Check your water Parameters

 

[zachfishman]

Carbon removes CP, I would run a lot of it (with large water changes) before trying any important inverts. Algae growth is not a good indicator of whether CP is present in the system.

If you have a UV sterilizer (or can borrow one), running it on your tank can help show the presence of CP. If your water turns yellow/brown, you definitely still have CP in the system.

 

[tkeracer619]

I've done a lot of testing on this. Bacteria metabolizes the Chloroquine but you will have a ton of phosphate left over. Just run some carbon for any residual but I doubt there would be any detectable chloroquine in the system at this point.

Test your phosphates. Probably off the charts.