The cycle is fish waste/ammonia a beneficial bacteria eats that and converts it to nitrites. A second beneficial bacteria eats that and turns it into nitrate. We do water changes to dilute/remove nitrates and organics that’ll decay into more ammonia. Any significant disruption to either of these bacteria like say if you rinse out your media in chlorinated water instead of tank water can cause the cycle to break and the cloudiness was explained in the previous post. Green tint is an algae bloom that is usually a result of too much nitrates + light.
There really isn’t an eye test, but if the tank is cycled and you’re keeping up on proper maintenance then test kits are only needed to get your maintenance scheme on track to keep nitrates at a ~safe level. Cloudy/green water are signs that something isn’t right, w/o test kits to know exactly what, alls you can do are more water changes. As
duanes
has said in many posts “the solution is always more water changes”
There really isn’t an eye test, but if the tank is cycled and you’re keeping up on proper maintenance then test kits are only needed to get your maintenance scheme on track to keep nitrates at a ~safe level. Cloudy/green water are signs that something isn’t right, w/o test kits to know exactly what, alls you can do are more water changes. As