Why do you use a latter? How big/tall is your tank? My tank was pretty tall but I didn't use a latter. 5'5". The only help I ever needed was to get two people to lift/take off a very big bulky canopy which was custom to a bowfront and solid wood. You could lower your existing tank by getting a lower stand for the tank.
Hi,
I'm 5'5...the 90g tank top without the canopy is 52", my canopy isn't heavy, but it's bulky, so far I can still manage to remove that, and the lights are on a pulley system... I use a step ladder to reach into the tank to harvest the macros, that seem to really like the rockwork in the very back.
My feet are deformed from wearing steel toed boots for 35 years on the railroad, and I have flat feet, literally no arch, and have now developed arthritis on top of everything else. There is a reason you can't be a soldier if you have flat feet. Walking has become so painful, that even the few short trips to the kitchen for RO water, to dump on the other side of the kitchen where my RO mixing tub is on it's own, a huge undertaking. My knees are shot from climbing stairs and trains, and my back is so bad I can't bend over for long (as in a few moments), then add my weight which is another big problem, stemming from not being able to do anything, until I became disabled my weight wasn't a problem.
So now I put my 90g and the 56g tall tank, up for sale on Craig's list. My heart really isn't into selling it, my first paycheck when I was 15 years old, was spent on a 10g tank... I really don't think I will be very happy without any kind of fish tank, so maybe something smaller... I may even consider a reef if it's easy enough for me to manage, but then...I would still have to put water in the mixing tub... sigh