its actually the wall of my server room that runs directly under it down to the cement floor, I made it a support wall and its not floating.. its surprisingly well planted.
damn goldfish live too long lol; this is the result of getting a goldfish for my son and putting it in a lil bowl.. then one day I googled goldfish and to my horror realized what a mistake I made so I built this thing; and now im hooked on aquatics.. its about 6 years old now and could live alot longer; if it was not a family pet at this point I'd replace the tank.. It was a 2nd hand tank, but a buddy of mine owns an aquarium shop and he re-siliconed so I'm hoping it'll last longer than this goldfish hah.
I have a level sensor in the tank to keep me from overfilling it, and I have a flood sensor on the floor right under the tank, and another one in my server room heh.. if the float sensor inside goes low it turns on my pressurized RO water line for a top off, and if that operation is not completed within 30s it nukes the fill attempt and immediately fires off every alarm I have.. so hopefully I'll know it sprang a leak in under a min, and my manual drain into the sewers will only go until the siphon on the intake pipe goes so it cant completely drain it, just mostly.. there would be enough left potentially to keep my goldfish and minnows alive for a lil while if I was remote.
I want to do a bigger tank in my office; planted to the brim.. it will have a fake wood tile floor and I'll even break the concrete under the tank to put a drain in the floor if I have too.. my basement is unfinished and I like watching my fish.