Re: removal of algae of plants w/o killing plants also in Datagurus's thread on the step by step instructions on setting up a low tech tank. she stated that the top gravel layer should be 1-2mm size. i plan on cory catfish. a lot of them since they are my favorites. i find that a gravel size of < 1 mm would be good for them since its fine and won't erode their barbels. would using fine gravel this small be ok. or should i buy some gravel around 1-2mm as suggested by betty( dataguru ) on her post? |