He already said he has not had any trouble and has had the fish for 3 years with a problem, no need to change it now, maybe some sort of clear fish net would be good for s just in case
I removed the overflow boxes to give more swimming space .took all the tiger barbs out and dumped them in the sump they were starting to fin nip the Jar . I then added 5 red rainbow 5 boesemanis rainbows and 3 Parkinson's rainbows. The snakeskin barbs are still in as well a s black shark .i put about 20 valid in but the jay just rips them out so there are a few left ,so added to plants that grow in the marsh areas by my house and they seem not to get ripped out .
I added 2 600lph pumps to the sump tuning from the return back to the overflow section just to increase the flow and added a product called orca bio cubes (1l) (so far all my levels are testing 0 after nearly 10 days the marine guys in S.A have had incredible results with this product stretching water changes to effectively 3to6 months .ill be happy with a water change once a month and weekly top ups .