did you 'regulate' the temperature at all? Say, with just a fan blowing over the top of the tank, or something similar? I'm guessing that'd lead to quite a bit of evaporation.. hmm
I'm thinking a tank during winter it'd be okay - the flat has poor insulation. But in summer i don't wanna have seahorse stew. (mmm, or do i?)
i wonder - i have an external filter with a compartment that could be submersed in coldness (with an ice-cream container and ice cubes.. crude..) but that could lower the temperature a smidgen? Probably not worth it, seeing as it's so small.. It'd need a lot of attention to keep just that little thing cold.
Hmm, maybe i'll just save up for a chille,r seeing as i won't set up the tank til december anyway. Gotta love thinking out loud.