every once in a while, when i feel like it, (effort and motivation issues)
ill acclimate a couple guppies to marine conditions via my tanks WC left overs.
I just fill the bucket half way w/ FW, the drip a full nother gallon of SW in over the first week, then drain half and refil w/ SW 2 times the next week.
i do it in a 2 gallon bucket w/ a powerhead. during the two week acclimation i GUT load them, big time.
I soak; enriched brine, cyclops, mysis, flake, and BWs, in seclone and feed them readily.
then the 2-3 nutrient rich, gut loaded guppies go into my mini mantis madness habitat.
thats why i do it.
ive been wanting to try the real fancy guppies as well