Hi, after your post I also became keepfish and crabs. And now I am very happy about it, because it is very beautiful and does not get bored in quarantine. First of all, I needed to buy everything necessary for this and the first in the shopping list was ARCREEF, where I bought a lot of things, as I wanted my sea friends to feel comfortable at home. In short, I can't even express my joy that I was able to find your post and found such a hobby as keep fish. If you have some advices you should write to me