I gravel vac with a small hand pumped siphon, then i let gravity do the hard work with a big hose.
for the new water I fill three large ceramic pots, which are out side my house, (plastic bins would do) the day before a water change and add White Crain anit clori. I put the aged, treated water in the tank with a spare pump and the hose I empty with.
50% water change on a 205 gal tank, cleaned glass inside gravel vaced, done and dusted in 1/2 an hour.
for the new water I fill three large ceramic pots, which are out side my house, (plastic bins would do) the day before a water change and add White Crain anit clori. I put the aged, treated water in the tank with a spare pump and the hose I empty with.
50% water change on a 205 gal tank, cleaned glass inside gravel vaced, done and dusted in 1/2 an hour.