Hi. Long story short (for a change!) my boy Frost was found to have struvite crystals about 6 weeks ago. He had the typical symptoms of frequent visits to the litter box and peeing only small amounts. Vet visit with a small pee sample and struvite crystals were found. Got meds and a new kibble to prevent these crystals (my boys eat raw morning and night and only have kibble as snacks). So, that all got sorted within a few days. At the suggestion of my vet they have remained on that kibble which is Hill’s Urinary Care c/d Multicare for Stress. After they started eating that, I read that kibble meant to prevent struvite crystals can actually cause their urine to become too acidic and a different kind of crystals (oxalate) can form. Was not impressed with that information. High alkaline urine can cause struvite crystals. High acidic urine can cause oxalate crystals. Struvite crystals are most common being that kibble is a common known culprit because it is high in additives and fillers (which are alkaline) and low in protein (protein is acidic). Now the last few days, my other boy Freeway is having the same symptoms (tiny pees the size of raisins) so I called the vet and we have an appointment late this afternoon - I will take in a pee sample. I suspect crystals (possibly oxalate crystals from the dry food that is meant to prevent struvite crystals?). I am sad and disappointed because their main diet is raw and I never thought this would happen because I thought the main factor in preventing crystal formation was too keep well hydrated. A few questions : Is there more moisture in raw than canned wet? Or less? I see my boys go to the water dish a couple times each day but they are certainly not great drinkers. I figured that was ok because of their raw diet. And, I do add water to their raw meals... I make it pretty darn soupy. Could there be something in the tap water to cause this problem? Could certain raw proteins contribute to the formation of crystals? I thought I read once that fish can. My boys love their beef/salmon blend of commercial raw so I give that to them about 1/2 of the time. The other 1/2 the time is divided between a couple other proteins. I am a little unsure about feeding raw at this point... I have not seen the benefits a lot of others have mentioned... such as small and odourless poos. Is this because they still get some kibble? Not only these things, but I am not convinced they are healthier in general. Thoughts anyone? Thanks!