07-12-2013, 11:45 AM #1
- Join Date
- Jan 2011
- methuen ma usa
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crushed lava rock as a substitute for bio rings?
still in the planning stages of my 55g FW sump system. been thinking of bio filteration, with the cost of bio rings i dont think it would be in the budget, so i was thinking of crushing up some lava rocks into inch or so peices and using them for bio filteration. i think ill have 4"x12" of bio space, so i doubt that will hurt too much. what do you guys think?KING OF THE GOLD BARBS RAWR!!!!
I wonder if i plant one of my tiger barbs would the demon seed grow to a full tree?
gotta love them bunnies!
I.R.S.: We've got what it takes to take what you've got!