Good morning everyone! I'm new to the forum because I'm new to the pond hobby. I have just started my first pond details below with a few pictures. I'm not done yet, so it's a work in progress...I have a feeling it's always going to be a work in progress Menards pre-formed 275 gallon About 6' X 8' X 18" deep (Wish it was deeper) but it's my first so can always grow! 4000 liter biological pressure filter with UV light on timer 2 hours in morning and 2 hours in evening Tetra pre-filter to 600GPH pump to Tetra fountain Tetra in-pond skimmer to 1,900GPH pump to LED waterfall I had some really clear water and for the first week and then added some Pondworx Pond Bacteria and the next day seemed a brown tint kind of dirty. I also added 3 gold fish my Dad gave me out of his 8 year old pond. They're doing good it seems, swimming around checking things out and seem to love where the waterfall dumps into the pond. They haven't been eating much though? I also added a placostmus (not sure I'm spelling that right) We named him shadow because he seems to hide in the shadows and not do much. Anyway not sure what I did that could of caused the abrupted change in water condition so I'm sure some "veteran" pond lovers could help me. I love this new hobby and learning all about it!