Reading between the lines i think youe main problem is that in your own words " some of your fish have been sick/unwell" this can soon dishearten the most stoic of fishkeepers .
I would suggest you do : 1 Don`t get rid of any hardware 2 get rid of any fish that you really are not that bothered about 3 wait for the fish you really want ,i`ve been guilty of buying fish willy nilly and on a whim then before you know it you`re bogged down with animals you care little about ,not good for them or you .
I would suggest you do : 1 Don`t get rid of any hardware 2 get rid of any fish that you really are not that bothered about 3 wait for the fish you really want ,i`ve been guilty of buying fish willy nilly and on a whim then before you know it you`re bogged down with animals you care little about ,not good for them or you .

