So I'm almost entirely out of Reptomin, but I've order some more (2 boxes!

). However, the shipping time is estimated at 6-10 days. I got one shipping confirmation on May 6th, but only today did I get a tracking #. So I'm going to assume that it'll arrive 6-10 days from today's date. Since I've got one, *MAYBE* two feedings worth left, my guys are going to be without reptomin for about a week. Now, I could go to the store to buy a small container of Wardley or something, but the smallest jars are still $3-4, which is just ridiculous for about 3 feedings each for my 2 adult RES. So I'd rather not do that.
They'll get all the lettuce they can eat, plus various other veg of course, but should I give them a bit of tuna or something once, even twice during the week?
Their main source of protein is usually the Reptomin, and only two or three times a year do they get something extra, like tuna or shrimp. (We don't often seem to have "turtle friendly" meat around...)