Ich Treatments...pennies = copper?

[alcohologist]

yeah.. and it's very common for puffers, angels and triggers to pick at the shark's fins, leaving sometimes severe wounds.

 

[millcityrider]

to get rid of ich I crank the heat for a few hours. . . Always works.

 

[milkman407]

Water is perfect no nitrate no nitrite no ammonia.

I do water changes about every other day due to the high load level of the tank

It is a 65 gallon tank with an emporer canister filter on it.

It has a 3.5" minniatus grouper
a 12" Marbled Cat shark
and a 3" Stars and Stripe puffer.

if those water params are true, than your tank is not cycled. a cycled tank in most cases will always have nitrates present.

 

[revkkoolaid]

DO NOT use copper on any tank which has a shark in it.
i advise you to rehome your coral cat as soon as you can, the 65 gallon is going to kill it.
also, the puffer is a terrible tankmate for the shark. what are the dimensions of your tank?

Alco is right. Copper (in any form) + sharks & rays = death. Some idiot at a local aquarium (Moody Gardens @ Galveston Island) dosed their shark system with copper and killed 17 sharks in 48hrs.

 

[revkkoolaid]

Shark bites puffer=both dead.

More likely the puffer will eat the shark. Catsharks are sitting ducks to anything with a beak. (ie puffers & triggers) but yeah . . .either way. . .bad idea.

 

[Twitterbait]

to get rid of ich I crank the heat for a few hours. . . Always works.

um... you do understand that that only works for freshwater fish? salties prefer colder for ich.