Originally Posted by Romad
Because he already had ammonia high enough to remove the prawn. I've read on various sites that leaving it in too long can introduce unwanted bacteria.
I aplogize,, I never saw any mention of ammonia level's .Only that a prawn was added and water became cloudy.
Remove the prawn ,and food for bacteria is gone and cycling will stall.
Were it me, (and it ain't) for this size tank,,, I would add one small raw,uncooked,cocktail shrimp and this would be source of ammonia.(food for good bacteria)
Every couple day's,,I would test for nitrites, with an "I" which should appear at around ten day's.
No need to test ammonia for unless you remove the shrimp,,the food is there for bacteria.
Once nitrite's appear,,I would then begin testing every couple day's for nitrAtes with an "A".
Once nitrAtes appear, and ammonia and nitrites with an "I" read zero for three or four consecutive day's, I would perform sizeable water changeof 40 to 50 percent to lower Nitrates with an "A" and stock the tank slowly, with a few very small fish for this tank which is quite small ,with a week to ten day's between new fishes to give bacteria time to adjust to metabolic input of fish food,fishes.
Is possible to add too much ammonia as is often the case with those performing fishless cycling using raw ammonia ,and this can indeed slow down the cycling process.
Is just what I would do /have done.