hi im new to this now i have a juwel vision 180 tank and i am wondering can i put in some rock with tropical fish. the only thing is that the rock came from a saltwater tank. is they any way to clean it and add it or anything like this.
What type of rock is it?
But generally, I wouldn't advise it. Even if you soak and wash the stones to get the salt out, the minerals and other stuff present in the rocks can wreak havoc on your PH and Hardness readings.
Rocks used in freshwater can go into saltwater as decorations. The reverse, however, may have potentially dangerous or troubling effects.
im not sure what type of rock it is. im new to this lol. i think i wont put the rocks in just to be safe. also which woulr be better in sand or gravel for the fish i have a small tank with gravel in at the moment but i would like sand in. is this ok for plecs aswell.
Depends on what kind of fish. Since you mentioned plecos, I think they're fine with whatever, as long as the substrate is not sharp that might injure them. Sand or small/medium sized gravel works fine.
Unfortunately, I think you're going to experience problems with that stocking list. Tiger barbs need to be in large schools in order to reduce the amount of aggression between them. I would suggest 8 fish minimum although you have room for quite a bit more than that in a tank of your size. The barbs are also going to nip at the betta's fins constantly, which will eventually result in the death of your betta. If they are common plecos, they will outgrow a 180l tank. Smaller pleco species like bristlenose, clown or rubberlip plecos would be more appropriate. Silver sharks (by these I assume you mean bala sharks) and clown loaches will also get much too large for your tank.
Sorry for all of the bad news! 180l is still a very decently sized tank and there are plenty of options for fish that will cause less problems and are just as interesting as the ones you've got picked out.
That would be a better choice as they stay small enough to be housed in your tank. Be sure only to get one rainbow or red-tailed shark, as these fish get very aggressive with their own kind as they get older.
forum community dedicated to tropical fish owners and enthusiasts. Come join the discussion about species,breeding, health, behavior, aquariums, adopting, care, classifieds, and more! Open to fish, plants and reptiles living in freshwater or saltwater environments.