I spot clean them every 2 days, but they live outside on the grass all day on warm days (most days as it’s summer) so it’s rarely dirty. I never knew too much veg made their poo soft so I’ll try feeding them less veggies and see if that helps. I’ll try your cleaning suggestion, thank you!
Spot cleaning ie removal of poop and wet areas of hay in the cage should be done every day, and even twice a day if things are getting messy.
Yes too much veg or too much grass on unprepared tummies can affect their digestion and disrupt the microbiome. Hay is their main food intake with anything else merely supplementary. Make sure you are weighing them as routine each week to ensure they are eating enough hay to keep their weight stable.
Any access to fresh grass needs to be built up slowly each year to prepare their tummies and not risk causing even a mild upset but, at worst, bloat. You can’t just put them straight on the lawn and leave them for hours.
Preparation is done by only allowing 5-10 minutes of grass per day for the first week, then building it up by 15 mins in the second week, a further 30 mins in the third etc etc until they’ve built up to all day after many weeks.
I actually start by offering handpicked grass to them in their cages from around February and only then if it isn’t frozen.
Vegetable intake may need to be lowered in spring to allow any grass intake into the ratio - particularly fresh, fast growing spring grass which counts as veg.
Ordinarily they can have one cup of veg per pig per day. The four safe daily veggies are lettuce, coriander, bell pepper and cucumber.
Long Term Balanced General And Special Needs Guinea Pig Diets
Feeding Grass And Preparing Your Piggies For Lawn Time