Not sure if you read my random thought speil about kids. We had a daughter, premature by 3.5 months, spent the next 168 days at the hospital, going home occasionally to feed the fish and four dogs, house/yardk work, etc. She, Elise, has paralysed vocal chords and breaths through a trach tube. We have to do daily maintenance for this, as well as learn and teach sign language. Since she came home, we've had a nurse in-house every evening to help out and make sure she keeps breathing.
I also have to keep the dogs busy, 2 border collies, and aussie and a pitbull. That's a lot of work. We're both involved in various dog sports, which take a fair amount of time.
Through all this, I've been able to keep the tank going, and often the tank is the thing that lets me chill at the end of the day. Keeping the tank comes down to "where there's a will, there's a way". I'm glad I have my tank, even those weeks I don't see it with the lights on. IMO, well worth the extra effort. Unless you're totally sick of corals, you'll miss it more than you hate it now
And a small little child isn't going to disrupt your life unless you let them...