<p>AmQuel&#043; Plus removes nitrate, nitrite, ammonia, chlorine & chloramines from fresh or salt water&#046; It is effective in removing toxic organics in older water, for fewer water changes&#046; AmQuel&#043; Plus does not interfere with biological filtration or nitrifying bacteria and does not in general affect the waters pH&#046;</p><ul><li>1 gallon size size</li></ul>