My fishs (malawi cichlid) have a unusual disease !?

Question

My fishs (malawi cichlid) have a unusual disease ! they have not ANY symptom ! and fully normal behaviour ,appetite ,color ,skin ,gill ,fin ,vent….. without any fungus or spots….
But just in somewere that equilateral fins adjoin to body(copula) exist blood color ! but not cause of any fight…
This disease stay in this state maybe for 1month ! May be regarded as a time-bomb ticking away in ALL fishes which lays dormant whilst the fish is not under stress and suddenly die! In about 2hour before die, loose themselves balance and abnormal swimming pattern ,(fully normal symptom and don’t have unusual sign) ,and in under 2hour game is over !!!
I tryed to treatment they , I used 1-tetracycline 2-amoxicillin 3-metronidazole 4-mebendazole 4-formalin and 100% water change! But all fishs die one-after-otherone
Can u help me ?

Answer 1

Bloody streaks in the fins are usually the sign of one of two things -septicemia, a bacterial blood disease, and too much ammonia in their water.

Since you've been treating for bacterial illnesses for a month, and haven't seen any change, I think you're safe to rule out septicemia. That leaves ammonia poisoning. This is even more likely since you've used the antibiotics, since these will have killed the beneficial bacteria that convert the ammonia and nitrite to nitrate. You should be doing partial water changes anytime your water test higher than 0.5ppm for ammonia, and this will probably mean twice a week 25% water changes until your bacterial population rebuilds.

http://www.fishlore.com/NitrogenCycle.htm
http://freshaquarium.about.com/cs/disease/p/ammoniapoison.htm
http://www.fish-disease.net/diseases.htm

Answer 2

Copperhead is right, it could well be a low level ammonia poisoning, but I wouldn't too quickly rule out an internal infection either. While you have used 2 drugs able to treat infections in fish, only one is reasonably well absorbed and would have a chance against an internal infection really and that's the tetracycline. Also, both of the antibiotics you used are older drugs that have been commonly used in the aquarium trade by breeders and collectors for years. This means some bacterial infections have built up a resistance to them. Maybe you can get a vet to assist you and get Cipro or something else in that drug family. It's much newer and rarely used in the aquarium trade, so odds of it working would be much higher.

All of that said, I would still suggest the most likely cause is environmental. If not ammonia poisoning, then some other poisoning. You don't mention you water source, but could it have high levels of copper, iron or lead from older pipes? If it's well or spring water, could it be contaminated with pesticides from nearby crop fields? There are far too many possible environmental contaminants to list here, but many can cause this type of reaction in fish with prolonged exposure. Maybe you could change your water supply for a few water changes and see if that helps. Also, activated carbon in the filter will remove many chemical contaminants that could be present in your water supply, if you don;t currently use carbon, or if you haven't changed it recently, try adding or changing it to see if that helps.

MM

Answer 3

No, the Angel gets ripped to shreds and the African Cichlids choose a extra robust PH. The Angel fish is a sparkling international Cichlid and the Malawi's are African Cichlids, they on no account blend. until your speaking concerning the African River Cichlids, they are able to blend with new worlds by way of fact the PH is nearer. yet Malawi's can in basic terms be stored with Malawi's, there is lots to % between nonetheless so which you will no longer become bored lol. returned regardless of in case you have a Angel fish which would be stored in an 8.0 Ph point they nevertheless will not be able to blend with African Cichlids. they do no longer seem to be close to aggressive sufficient and with those long flowing fins, on the spot dying. solid success