If you have fish you MUST do water changes. There aren't many bacteria in the water (they are mostly in the filter and substrate) so while your cycle will slow down a little it won't slow down that much. Water changes are the only real solution. Keep watching your parameters and if they get to 0.5ppm do another large (50%) water change
35G barebottom: 2 boesemani rainbowfish, 4 congo tetras, Low light plants (1.5wpg) attached to or planted in my own handmade ceramics - Anubia v Nana, Anubia v Barteri, Red Rubin Sword
2.5G - Spot (beautiful betta - Soft pink with red spots on his fins. Java Moss.