Well I dont want to move the substrate. It is absolutely FILLED with Melania snails and I want a lighter substrate this time, since the one I have now is black. Decorations tho ? Can definitely move those along with plants. Only got few clay pots and a small Dinosaur skull I love anyway.Technically moving everything over will instant cycle - also you don’t always have a choice.
But you may need a new filter unless this one is rated for 65 as well as 40 gallons.
I believe its an Eheim Classic 250. I might be wrong tho. Says its for aquariums from 80-250 liters.Those will work, but the less you bring over the less beneficial bacteria comes into the new tank, increasing potential cycling time. Might be a good idea to add bacteria upon setup. The filter may say what kind it is on it.
Woah thats a huge difference ! Ok maybe I will just transfer my ile substrate to the new tank afterall...Plus more benefical bacteria too. Your Del looks great btw.Black substrate is the best imo because the bichirs colors pop. Brown is my del on light substrate vs dark substrate
View attachment 1489364
View attachment 1489365
Woah thats a huge difference ! Ok maybe I will just transfer my ile substrate to the new tank afterall...Plus more benefical bacteria too. Your Del looks great btw.