Part of me wonders if this is someone having a laugh.
The original poster has made two posts- one saying he's put three of the largest species fish readily available out there into a small tank. Yet despite listing three of the largest fish in the hobby had no idea how big they would get. Bit of a coincidence for a new hobbyist to pick the three largest growing fish in the LFS and not know they grow big.
Then in the second and only other post he says:
... and we haven't seen the poster since. Is there any chance at all- that this poster is someone from the forum who created an account just to get a laugh at people reacting horrified to this situation?
I'm a huge skeptic by nature... so it makes me wonder.
If this is legitimate I do hope the OP has listened to the advice given and not been scared off after hearing people's honest opinions.
Making a mistake is forgivable and understandable- especially for someone new to the hobby-
Knowing the mistake and not taking steps to correct it puts the fault on that person.