Ich and low PH

[pikapp168]

If my PH drops-will this cause stress-and could this be the reason that my fish are getting ich? I did a water change last night and add some more buffer. I'm trying to figure out what is causing stress. I am feeding garlic with my fish food and they are eating. Just trying figure out what mybe causing the stress in the tank. Any ideas what causes stress the most that I might be looking past?
I removed one of my naso tangs cause I had two and my LFS said that you can't keep two naso's (blonde and a naso) in the same tank unless you keep them in 3's and I need a bigger tank.
I have a 75G and every thing seems fine. I am going to try hypo to treat the ich, but are there any other ideas that might help here?
Thanks!

 

[nicetry]

Unfortunately, your tank is not suited to a single naso tang, let alone two. This is a large, stiff bodied fish built for open water swimming. As adults, an 8 foot tank is not even large enough. What all is in your tank?
What is your pH, including your other parameters; salinity, nitrate, temp?
Low pH can be stressful but stress does not bring about ich. It is a parasite that must be introduced into your tank via an infected fish. Have you added anything to the tank lately? Do you have a quarantine tank?

 

[pikapp168]

Most people think that ich is always in your tank. I hear that more more now. I looked my naso up and spoke to my LFS and that seem to agree (I spoke with all 3 stores) that the naso isn't the problem. I have a powder blue tang, Naso tang, Regal tang, and Blue throat trigger. None of them have a problem, nor did they until recently. My Ph dropped a little. And I'm trying to find out where the stress issue is. Most places and info I've read said that almost all fish or tanks have ich and fish can get it when the get stressed..they shed there slim coat..inwhich the ich attaches itself.

 

[nicetry]

Ich is not always present in a tank, in spite of what your lfs tells you. This is simply not true nor has it ever been scientifically proven. You're asking about stress; three tangs and a trigger in a 75 gallon tank. Probably not what you want to hear but your tank is grossly overstocked. The powder blue and hepatus tangs are extremely prone to parasitic infestations. By not quarantining all of your fish before putiing them in the main tank, you have introduced the parasite to your tank and now all fish have been exposed and must be treated.
Check out the FAQ's at the top of the Disease forum. Read up on quarantine, hyposalinity and ich. It might help you understand the problem a bit better.
Again, stress does not bring about ich. It can weaken immune function, making fish more susceptible but the parasite has to be introduced into your tank. Not all fish have it and it is entirely possible to have a system free from disease.

 

[sfoister]

Wow, your tank is way too small to have all of those tangs and a trigger. I have the same size tank as you and I am limited on the kind of tangs I can put in mine and any trigger is a huge no-no.
Whoever has been advising you on your fish selection is payed comission.

 

[sepulatian]

Originally Posted by nicetry
Ich is not always present in a tank, in spite of what your lfs tells you. This is simply not true nor has it ever been scientifically proven. You're asking about stress; three tangs and a trigger in a 75 gallon tank. Probably not what you want to hear but your tank is grossly overstocked. The powder blue and hepatus tangs are extremely prone to parasitic infestations. By not quarantining all of your fish before putiing them in the main tank, you have introduced the parasite to your tank and now all fish have been exposed and must be treated.
Check out the FAQ's at the top of the Disease forum. Read up on quarantine, hyposalinity and ich. It might help you understand the problem a bit better.
Again, stress does not bring about ich. It can weaken immune function, making fish more susceptible but the parasite has to be introduced into your tank. Not all fish have it and it is entirely possible to have a system free from disease.
nicetry is 100% correct. Please also remember that those LFS's that you talked to sold you these fish and they want your money. They are not going to admit that they gave you bad advice. We have nothing to gain by sharing experiences.