How Many Saltwater Fish Can I Put In A 30 Gallon Tank?
About the number of saltwater fish can I put in a tank of 30 gallon? I intend to have a replacement in 30-liter tank of a fish only saltwater aquarium. I have had freshwater tanks, but in the new salt. Even with salt water are best for a tank of 30 gallon?





I would stick to just small fish, I have a 40 gallon tank and have a Regal Tang in it and while it is small it is OK but I will have to move it to the larger tank when it has grown as it will be too big.
They say you should have 1 inch of fish for every 6 gallons, so therefore you could have 5inch, which would only give you 2 small fish, but I think this is silly and I don’t stick to this rule. In my 40 gallon I have a common clown, a regal tang, starry blenny, bi-colour bleeny. yellow clown blenny, strawberry gramma, red scooter blenny and a blue cheek goby, and they are all doing well, so you should be alright with about 6 or 7 small fish.
I would avoid damsels, they are cheaper than the others but you are likely to have problems with them as they are very territorial and do bully the other fish.
The best salt I have found to use is Instant Ocean but there are a few different types at different prices, the marine shop will be able to advise you.
it really depends on the fish your set up and filter
you could put like 4 or damsals in there but a blue tang would be out.
If you could give us an idea of the fish your are thinking about we could give you a much better idea.