lynnamarie
Aquarium Advice Newbie
So I have a 120 or 150 gallon tank (not sure the size cause it was given to me and I restored it.) It's 6ft long, 24 high and 18 wide. It was a old tank that was sitting in a old zoo. I've had it now over a year and it was doing great. Water temp 78, all water parameters normal. I had a couple clams that I had in my goldfish pond outside that I brought inside. The goldfish and guppys that were in that outdoor pond came in as well. The goldfish is in his own tank (hospital tank) he has no tail. Had a injury a couple years ago and I don't want him getting picked on by other fish. The female guppies I put in with the big tank. I had the clams in the tank with the injured goldfish but moved them to the large tank. Then my nitrate levels started spiking so I did water changes and got it back to normal. One of my Koi started having missing scales, a couple of the guppies died. Now I did have a few mollies die off before putting the clams in so I don't think it was them that caused it. Now my one goldfish is hitting itself against the rocks and I am wondering if it's parasites. My question is, I want to start using aquarium salt in the water but I am not sure how much to add. I do have rooted houseplants in the tank as well as netrite snails and the clams. Normally when doing water changes I add in a little salt to the smaller aquariums but I haven't done it with the big tank. I am not sure how much to add so not to kill off my fish.