If you want to avoid work, get a smaller tank or use the monkey brains we all have and put it to use.
A simple device as shown above will work fine, large diameter drain hoses, automatic water changers, Python styled water changers are a snap.
I use a simple drain valve hard plumbed to a 350 gal tank, I can change and refill 200 gal in about 1 hour.
I can trim while draining and refilling an clean the glass.
I spend about 2 hours total on the tank a week, that's it and it's got high maintenance plants, aquascape.
But if you prefer, there is no reason you must
do 50% weekly water changes, it's merely a baseline for folks having issues, but you can do less and dose a bit more conservatively and use the plant's health as the indicator you need to add more.
You can do 25% weekly, or 50-70% once every 2 weeks etc.
That is up to you ansd what works for your habits.
I greatly prefer having the option to do a large water change easily.
Make the water change easier and faster.
Automatic water changers also work well.
I prefer easy manual changes. A large diameter drain hose to outside or a drain, and a simple refill hose attached to a bath faucet is simple enough, add a valve to shut off near the tank.
You are done.
Should take about 1 hour or less to do the tank and you can clean and trim during that time.
3rd annual Plant Fest July 8-14th 2005!
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