Originally Posted by somewhatshocked
Swapping 50% of water every week can be harmful if it's not necessary. Not in all cases, but it's definitely risky and can be confusing for those new to the hobby. Especially with those who keep sensitive shrimp.
Water changes actually can't take the place of a resign like Purigen. Not on the polishing front and not even when it comes to removing tannins from water.
Stick to what you're doing, OP, as you have the right idea and won't regret it. Crystal clear water.
I agree 100% with Jake's above comments.
WCs are good, but for superb water clarification, you can't beat Purigen.
Been using it in my 75 gal planted discus tank 24/7 for years, while still doing minimum 60% wcs twice a week. Tank is always crystal clear - just the way I want it.
I wouldn't be without it.