I have done some research but need info on Gouramis - specifically dwarf flame and powder blue. (I have Malawi cichlids). research is good, but I prefer getting advice from experienced hobbiests that keep Gouramis day to day, year to year. What is realistic life span in ideal tank conditions, and what are consistently the best conditions for a gourami. I've read little to no movement, so is a sponge filter better? 10, 20 or 30 gal - I'll be keeping only males so I figure the less the better but how many gallons per fish is ideal? Temp ok @ 78F? and are they going to disturb the plants and substrate like my cichlids do? Also are fresh or fake plants better. I have a 30T so is 16" plants all-right or floating. I also have black shale, but would like to use driftwood. i know driftwood is alright w/discus but will it affect the ph for a gourami? Thanks any info is great!