Because there septic tank can't handle that much extra water going down the drain every week or 2 :biggrin:

I have only really done maybe 4 WC on the big tank in 2 years mind you I don't have any SPS in there either.

I change 20 gallons every week in my 125 mixed reef, sounds like I am going over board compaired to everyone else.

i have a small tank i change the water once a week but my corals r beeen really healthy and growing well i like em my torch got very big and frog spawn

I think if it as if you were trapped in a closed system, say your bath tub and crapped it in every day and so did your neighbour you cant tell me there would not be things building up in there we could not test for or know about.

I have tried going with limited water changes and 40 gallons every two weeks, it looks like a different tank when i do regular water changes. The colours are way brighter, growth is noticeable better and corals are hardier when we keep up on our water changes.

I change 50g every 2 weeks in my 180. My tank is doing pretty good. IMO, changing water is the single most important thing you can do for tank maintenance. The only two reasons I can see for not changing water is A. laziness, or B. being cheap. Neither of these are good qualities for reefkeeping.

You would probably be better off doing 40g every other week. You'll dilute nutrients more with larger changes. But no, not overboard, you're taking proper care of your tank. Good for you!

Then dump it in your driveway, or your gravel pit, or run a hose to the road.

+1.......well said.....way more elements and minerals get replaced when we do a w/c then just the big three that most of us think about....

im new to reefing, and limited water changes with dosing or maximum water changes with out dosing, is that what your saying?

+1

Ohhh the humanity! how long could you breathe the same air if you were trapped in a box?:wink: