Doing 50% WC twice a week is over killing. You are stripping away nitrate your plants need. Do you consider dosing nitrate after WC. I do even though my stocking is much higher than yours.
Having two AC500 in a 75 is over killing. You have enough filtration with one canister and a HOB, just direct the flow to get good distribution.
You can vacuum debris during WC. One trick to vacuum over carpet plants is to tie a turkey baster onto your siphon hose so you can squeeze the baster to blow up debris during vacuuming.
Having two AC500 in a 75 is over killing. You have enough filtration with one canister and a HOB, just direct the flow to get good distribution.
You can vacuum debris during WC. One trick to vacuum over carpet plants is to tie a turkey baster onto your siphon hose so you can squeeze the baster to blow up debris during vacuuming.