Huge Tank Water Changes

[Hamsnacks]

Just curious for the members on here with large tanks, 400 Gallons+
Do you guys do 20% or more water changes per week?

I'm looking at getting a 400+ tank in the near future and was just curious, cause that's about 100 gallons or more per week.

Not here to judge the members who don't just want to see what people do and don't do.

Thanks

 

[Colin_T]

Big water changes on any and all tanks. The biggest tank I had was 400 litres and that got a 75% water change every week. I use to maintain my cousins 600 litre marine tank and I did a 90% water change on that every 2-3 weeks. In the shop we did 75-80% every week on all the tanks including the 10ft display tanks.

It also depends on how many fish are in the tank. If you only have a few fish and lots of plants then do a 75% every fortnight.