i have to replace the seal on the impeller motor unfortunately i can't get the seal here until thursday at the earliest will my fish survive if i leave the bio in the tank with and air pump and some water changes???
for me and this is just my opinion but i wouldn't go any smaller than 125 gallon for all three depending on wich pleco you ended up with
no an oscar doesn't need a tank mate to be happy
bare minimum would be 55 gallons but to make him comfy 75
hopefully i can help you a bit here
1 most water conditioners work instantly however just to be sure check the back of the bottle and it should tell you
2 i would probably leave it.. if it's not that dirty i wouldn't worry much about it
3 i really have no experience with it so i can't...
ok here we go
1. i aint so good at cel but i would go 26 to 28
2 for decor the oscars will let you know what they like and dislike lol i would stay away from anything that has sharp or pointy edges though
3 as long as the ph is stable they will do just fine
4 because of there size...
if your friend doesn't have the time to take care of the fish he already has why is he adding more fish???? frankly if it were me i would tell him to either sell you the setup of you have the money or tell him to find somewhere else to keep it
Best of luck with that setup i really hope you can make it work.... only because your chances having your oscars pair up is probably scarce so you may have some aggression to deal with between those two... now your oscars should happen to pair off i feel really sorry for that dempsy cause its...