DS would like some tropical fish for his birthday. He’ll be 6. In the past I’ve had cold water fish and pond fish but never tropicals.
The tank will be minimum 70l, hopefully around 90l on a predominantly horizontal not vertical footprint.
Do I need to treat the water for a few days before the first fish go in? We’d like a variety of small fish that won’t grow but will only introduce one type at a time. We want a peaceful tank so will be choosing fish accordingly. We’ll also be providing them with live plants, although I know this will make the water dirty more quickly. I’d like a couple of catfish to keep the glass clean - is that an option?
Any tips on any aspect of keeping tropicals gratefully received, especially initial set up. I don’t expect DS to take responsibility for caring for them, we have a variety of animals and he’s good about helping with them all but at 6 I wouldn’t expect him to be solely responsible for tropicals. Thanks!