every morning when i get up i turn on my tank lights checking everything out making sure everyone is ok, just habit i guess from when my friend had some issues with his 45 and every couple days it seemed like he had a new casualty in his tank. and every morning my 2 GSP both are just sitting on the sand substrate and are all off color, spots are faded etc. but every night when i get home they are out and about swimming around, fully colored looking very healthy and fat. so i constantly test my water to make sure its not due to poor water quality/stress. ammonia constantly reads 0, same with nitrite, nitrate is usually around 10-20, ph is at like 8.2. anyone have any insight on this? i would imagine if it had to do with water quality, since this has been happening basically since i got them, they would have died by now along with any of the tankmates i have in with them. everyone is good though, everyone eats, i keep them with a varied diet of bloodworm cubes, mussell cubes, mysis shrimp, krill occasionally, just started emerald entree for marine and freshwater yesterday and they loved it, snails/crabs/crayfish for their teeth, just picked up some daphnia yesterday but didnt try it yet. does this seem like a healthy varied diet? maybe im just being too cautious 
and this is normal when they are resting for the night? its just something that has been bothering me and ive been wondering about for a while now. also has anyone ever had ghost shrimp in their tank that the puffers didnt seem interested in eating left over from the last time you picked them up? but yet if you put more in since the number of shrimp diminished they would chase the new ones around religiously until they happily got one to eat? i got like two dozen saltwater ghost shrimp probably close to 2 months ago(when they were in freshwater the FW ghost shrimp lasted MAYBE a week or two until they were all gone) but for some reason they have let a half dozen or so live and 3 or 4 of them are pregnant, could the shrimp have cut some sort of deal with the puffers 
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and this is normal when they are resting for the night? its just something that has been bothering me and ive been wondering about for a while now. also has anyone ever had ghost shrimp in their tank that the puffers didnt seem interested in eating left over from the last time you picked them up? but yet if you put more in since the number of shrimp diminished they would chase the new ones around religiously until they happily got one to eat? i got like two dozen saltwater ghost shrimp probably close to 2 months ago(when they were in freshwater the FW ghost shrimp lasted MAYBE a week or two until they were all gone) but for some reason they have let a half dozen or so live and 3 or 4 of them are pregnant, could the shrimp have cut some sort of deal with the puffers ?
