Originally Posted by nicole
Our water parameters are:
The ammonia reading is most likely a false possitive but I would get it double checked to be safe. Are you using a Nessler or Salicylate based test kit?
In any event, you will still need the water changes even if these numbers where all zero's. DOC
is where the nitrogen cycle begins. Having zero numbers does not mean they aren't there, simpley the biofilter is keeping up with them. Reducing the DOC
will help the fish fight any potential bacterial issues without the need for meds in most cases.
The tangs, we also have a sailfin and a naso, are eating algae strips, fresh caulerpa from the lfs and mysis shrimp.
Tangs are hebavors and while they may get some nutrition from mysis, it's best to soak it in a good liquid marine vitamin before feeding. Selcon or Zoecon would be good choices. Also be sure it is the least used item and not a regular dietary addition. The "algae strips" are good depending on manufaturer but I would nix the caulerpa unless you know the species. With live macro algaes, you want to feed only non caulerpa species. I would instead suggest broccoli, spinach, peas, corn and/or carrots. Terrestrial veggies with a high vitamin content are just as good as if it where getting the "real deal". Just be sure not to use leafy lettuces, they are mostly water.
How big is the tank and have you seen much aggression between the tangs?