Where I have seen folks go wrong

snorvich · 01/03/2015, 11:54 AM

From working in this forum for quite a while, I have seen quite a few scenarios where folks run into problems:

Leaving a fish at the LFS for a month to make sure it has no parasites. While this seems to be intuitive, there are several problems with this. First, many local fish sellers run copper in their system and this will mask various parasites. Secondly, since LFS run fish systems, and receive new fish frequently, they are constantly exposing fish to new parasites and other diseases. And third, but more important, parasites are not obviously visible until later in the life cycle.

Buying fish from local reefers is the safest. While this too seems obvious, what you don't know is when the last un-quarantined wet item was added to the local reefer's tank.

I quarantined the fish for three weeks before adding it to my display tank. First, that is not long enough, and secondly, as mentioned above visible signs of a parasite come at the latter parts of the life cycle.a If purchased from an LFS that runs copper, parasites tend to show up around the fourth week after being removed from copper.

My LFS keeps their fish at hyposalinity, 1.016, so they cannot have ich. Several problems with this one. First, 1.016 is not hyposalinity even thought the SG is lower than Natural Sea Water (1.025) and LFS do this to save on salt not to cure ich. What is worse, hyposalinity, even if 1.008/1.009 which would cure most varieties of ich (but not all), has no effect on brook, uronema, or velvet.

I always give my fish a fresh water dip before adding them to the display tank. This is stressful for a fish. While it can be used to diagnose flukes, it has no effect on ich, and only a temporary effect on velvet.

Hope this dispels some of the ideas some folks have about fish parasites.

Nina51 · 01/03/2015, 04:26 PM

i already knew all that...because i learned it from YOU.

CoralsAddiction · 01/03/2015, 04:37 PM

Nice write up. Thanks for doing it

Whiterabbitrage · 01/03/2015, 06:11 PM

Sticky?

Deinonych · 01/03/2015, 08:47 PM

I would add "observation only quarantine" of any particular length as a corollary to #3. Even if you observe without treatment for 8+ weeks, you could still have a parasite rear its ugly head. I firmly believe that if every aquarist practiced TTM in combination with prophylactic praziquantel treatment, we'd eliminate a large majority of "help me" posts in this forum.

01/03/2015, 11:54 AM	#1
snorvich Team RC member Join Date: Aug 2005 Location: Outlander Posts: 40,953 Blog Entries: 46	Where I have seen folks go wrong From working in this forum for quite a while, I have seen quite a few scenarios where folks run into problems: Leaving a fish at the LFS for a month to make sure it has no parasites. While this seems to be intuitive, there are several problems with this. First, many local fish sellers run copper in their system and this will mask various parasites. Secondly, since LFS run fish systems, and receive new fish frequently, they are constantly exposing fish to new parasites and other diseases. And third, but more important, parasites are not obviously visible until later in the life cycle. Buying fish from local reefers is the safest. While this too seems obvious, what you don't know is when the last un-quarantined wet item was added to the local reefer's tank. I quarantined the fish for three weeks before adding it to my display tank. First, that is not long enough, and secondly, as mentioned above visible signs of a parasite come at the latter parts of the life cycle.a If purchased from an LFS that runs copper, parasites tend to show up around the fourth week after being removed from copper. My LFS keeps their fish at hyposalinity, 1.016, so they cannot have ich. Several problems with this one. First, 1.016 is not hyposalinity even thought the SG is lower than Natural Sea Water (1.025) and LFS do this to save on salt not to cure ich. What is worse, hyposalinity, even if 1.008/1.009 which would cure most varieties of ich (but not all), has no effect on brook, uronema, or velvet. I always give my fish a fresh water dip before adding them to the display tank. This is stressful for a fish. While it can be used to diagnose flukes, it has no effect on ich, and only a temporary effect on velvet. Hope this dispels some of the ideas some folks have about fish parasites. __________________ Warmest regards, ~Steve~

01/03/2015, 04:26 PM	#2
Nina51 biggliest cofveve champ Join Date: Aug 2004 Location: 5th floor, Illinois, gewgaw expert Posts: 3,506	i already knew all that...because i learned it from YOU. __________________ of all the things i've lost, i miss my gary the most. Never hold your farts in. They travel up your spine into your brain, and that is where crappy ideas come from. Current Tank Info: i gave my reef away and i feel like a bird out of a cage!!

01/03/2015, 06:11 PM	#4
Whiterabbitrage Registered Member Join Date: Mar 2013 Location: Seattle, WA Posts: 1,338 Blog Entries: 1	Sticky? __________________ ~Morgan Current Tank Info: 150 gall, 30 gall sump; 30 gall refugium

01/03/2015, 08:47 PM	#5
Deinonych Registered Member Join Date: Aug 2012 Location: Austin, TX Posts: 4,191	I would add "observation only quarantine" of any particular length as a corollary to #3. Even if you observe without treatment for 8+ weeks, you could still have a parasite rear its ugly head. I firmly believe that if every aquarist practiced TTM in combination with prophylactic praziquantel treatment, we'd eliminate a large majority of "help me" posts in this forum. __________________ Chris Hope is not a strategy. Display Tank: DSA 105 w/36gal sump/fuge · 2x MP40wES PHs · 2x Radion Gen2 · Apex w/PM2 · Fish · Corals · Rock · Sand · Water

01/03/2015, 04:37 PM	#3
CoralsAddiction Registered Member Join Date: Mar 2014 Location: L.A./Tahoe Posts: 6,003	Nice write up. Thanks for doing it