I think the short answer is you could be feeding less and there are things you can do like going from flakes to a high-quality pellet, rinsing the frozen etc But is suspect you really love your fish and this is your way of showing that love and if you don't have any losses, color loss or algae issues I wouldn't be overly concerned and suggest massive changes because the tank looks like you are doing a lot more right than you would be wrong.
If you are playing around with vinegar dosing I think looking towards increasing the dose slowly should be able to help with some of the numbers you have, id probably look at doing VSV rather than straight V to try and get some of those phosphates as well and hoping that doesnt cause you any issues like you have had with other broader spectrum carbon sources.
Things like your xenia and clams will also help as they get bigger they become a filter all by themselves.
You can look at different media blocks ect as well[/QUOTE
I think the short answer is you could be feeding less and there are things you can do like going from flakes to a high-quality pellet, rinsing the frozen etc But is suspect you really love your fish and this is your way of showing that love and if you don't have any losses, color loss or algae issues I wouldn't be overly concerned and suggest massive changes because the tank looks like you are doing a lot more right than you would be wrong.
If you are playing around with vinegar dosing I think looking towards increasing the dose slowly should be able to help with some of the numbers you have, id probably look at doing VSV rather than straight V to try and get some of those phosphates as well and hoping that doesnt cause you any issues like you have had with other broader spectrum carbon sources.
Things like your xenia and clams will also help as they get bigger they become a filter all by themselves.
You can look at different media blocks ect as well
Thanks, what dose would you recommend I use for 400lt tanks, fish are all healthy looking.... touch wood..., even mandarin is has fat belly, the problem is I think is I purchased fish when I first started with my tanks not knowing the cute little thing would grow into a really big fish, and now i have had them for years, I hate to part with them, unless they went to good homes, I also have a small tank with 1 large maroon clown, she had 1 anemone and now there are 5, i will have to do something there, I do not have a nitrate problem in that tank