1m 1bout to set 85g tank, i am going with flourite black sand,, my next q regarding filters, i have one eheim classic 2217, am thinking buying another one, or should i consider some other filters like ocean clear, i never use and not sure how to set them, i know i need to buy pump for it, but these filters look quite big? the tank will be for plants and small fishe,(tetras)
anythoughts?
thanks