+1 big time to 50% PWCs. And if you had 40 ppm nitrates and did a one time 25% PWC, you would still have 30 ppm, not 10 ppm. There's no way you could change only 25% of the water and have a 75% reductions in nitrates. If you are only doing 10% weekly changes, your nitrates would be 36 ppm after the PWC. And as stated by others, do not add salt to the tank.
Originally Posted by SueD
I would say the ammonia, nitrates and fear of the shark (highly stressed pleco) are what is doing in your plecos. If you want a bristlenose, the shark needs to go and you have to keep on top of your PWCs (50% weekly) to provide good water parameters.
Last edited by gronlaura; 08-26-2013 at 07:55 PM.
My 75 gal Journal & My Dual 29 gal Journal
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