Cloudy, green, tea-coloured — a quick triage.
Cloudy white, especially in a new tank, is usually a bacterial bloom. Annoying, mostly harmless, often resolves itself within a week of patient water-changes. Don't overfeed.
Green tinge is algae having a good week. The fix is light, not a chemical. Reduce the photoperiod and inspect the placement of the tank. Direct sun is rarely your friend here.
Tea-coloured or yellow-tinted water is tannins from driftwood, and is usually fine for the fish, less fine for the photographs. If you don't want it, a charcoal filter clears it in days.
What should worry you: a sudden change. Whatever the colour is on Monday, you want it to be the same colour on Friday. Quick shifts, not the colour itself, are the signal worth chasing.
The drawer of everything, the fridge magnet, the folder of important papers, the glovebox. Eight real hiding places, and what each one says about how we think about that piece of paper.
Biscuit insists on guarding the front door. The gap between size and self-image.
Grouchy on Monday, content on Sunday. What that pattern usually means, and the small fix that tends to work.