I cant see what the problem is with telling people about your site, if you had just joined and not posted anything except a link to your site then that would have been one thing but as you have 59 posts under your belt I think it should be let slide....Just my opinion
What about "All tanked up" instead of tank talk,
I think you could combine the coldwater fish and coldwater pond sections as the cold water fish says
Talk about your goldfish, koi, and other pond fish.
so it could go in the pond section and save server space...
I also wasnt sure as to why you included heated ponds in tropical freshwater...
I think a better layour would be to move tropical fish up to fish types and drop the heated pond down and have heated and coldwater ponds in their own section