Changing Gravel with fish...

[ameliaaahx]

I've tried to ignore it but I can't. I've tried to tell myself it doesn't matter, it does.

My 70g and my 5g both have dark grey and brown gravel. My 30g, which was the first tank I set up, has white gravel. And I hate it. It bugs me so much. The tank would look so natural and brilliant without the stupid white gravel.

The tank is heavily planted and contains a whole bunch of neons and some kuhlis. (There are some cories in there at the moment but they will be gone by the time this exercise takes place, if it does take place).

My question: how do I go about this while causing the least stress to the fish? Do I remove them all to a bucket with a heater or do I carefully remove all the plants and driftwood whilse theyre still in there and scoop out the gravel by handful until its empty, then gently add the new gravel? Can't decide if it would be more stressful for them to have their habitat rearranged around them or have to spend a few hours in a bucket.

Tips and suggestions for this process would be greatly appreciated! I know the neons will be easy, I find them really tough wee things and easy as to catch. Its the kuhlis i know will be a struggle.

Also, I never vacuum the gravel around the back because that's where the plants are. I know if I disturb it its going to cause a huge mess of all the crap that's been building up there since I set the tank up. Will this harm the fish if they're in there?

Also, will this cause my tank to mini cycle, as I know a lot of the bb will be in the gravel. My tank is extremely stable though, probably because of the plants. I do a water change every week but my nitrates are always extremely low, 5ppm Max.