Think I would have to go with a Southeast Asian biotope!
How cool would it be to have a tank that kind of size for clown loach? I would so love to see peoples faces when i walk into the shop and ask for 20 odd clown loaches
I would go for a blackwater habitat with a silver sand base, huge tree trunks and branches... lots of driftwood....
Plant wise i would go for lots of hygrophilia, crypts, crinum bulb plants (would love crinum calimistrum) and a load of nymphea sp tropical lillies.
Though would have to be planted deep with large smooth rocks to protect the base of the plants and plant them in large groups so when clown loach to rampage through the tank, they dont destroy everything.
Looking into it more... it think lots of Crinum callimistrum(sp), Nymphaea sp (for the pinks), Cryptocoryne balansae (one of my favourite plants!) and Hygrophilia difformis (another fave for its bright green and bushy and grows huge, though would have to make sure its established way before loaches go in!)
Species of fish... think i would stick to 2 maybe 3 species.
Clown Loach being the centerpiece. Im not sure how many.. 20 minimum... would love more but hey...
I have spent way too long thinking about this! Going over and over species... like i would love an epic shoal of WCMMs but they need a much lower temperature and it would compromise the clown loach...
Then i thought about the different species of danios and barbs... i loved the idea of Apollo Sharks... they are an amazing species, very much like arrowanas in their aggression but much faster and stay at about 25cm... but they really are predatory and would eat small loaches...
I considered rasbora as most fit the bill, lots of microrasbora fit the bill for the biotope but i think the loaches would just eat them and the filtration suck them up, needed a slightly larger species more able to fend for itself and tolerate a much higher flow....
Settled with Clown Rasbora

(Rasbora kalachroma). They have always been one of my favourite rasbora but needing very soft and very acidic water, i've never been able to keep them alive. This would be ideal set up for them and they fit with the biotope!
Would be an epic shoal... but size of shoal would depend on the exact tank dimensions...
Wow... really have thought about this waaaaaay too much!!

I've been thinking about the tank i would have for 2 days and been writing this post for 2 hours or more!!
I want to go away and cry now because i cant have my tank
