at the morning when i opened my eyes i always cliking my fish lamp..couse my tank in my bed room..see em few minutes feeding em worm..after work see em few minute give em guppies..before sleep give em cricket..
hoho..+-30 minute a day..
I saw I watch my fish around half an hour at least in my room because I have a perfect view of them and I enjoy watching my channel catfish and I watch them about 10-15 minutes at least because I feed them.
I have a tank in the living room so about 2 hours at least to that, a tank in my room which I stare at until I fall asleep (I'm a bad sleeper) so I'd give it at least an hour to 3 max