I'm pretty new to aquariums, and now that I've suceeded with the nitrogen cycle I have a few questions.
1. Can I put crabs/shrimp in an aquarium that is full of water or does it have to be shallow?
2. Can I put Bettas in an aquarium along with other fish?
3. Do freshwater puffers puff up like saltwater puffers?
4. How can I get rid of nitrates without water changes?
5. My water is cloudy and it looks like my aqarium has fog in it. Is this a bad thing? If so how do I get rid of it?
That's it for now. Any help will be appreciated. Thanks!