dmurray407 Posted June 29, 2022 Share Posted June 29, 2022 Is it OK to layer substrates? I have about 2 inches of black gravel in my 65 gal aquarium. I would like to add a little more-maybe another inch. I'm wondering if can gradually add some Eco complete (I like the look of it) or some other substrate suitable for planted tanks over the top of the gravel? I don't see a reason to remove the gravel-it's been in the tank for a few years and is full of all kinds of good bacteria but I want to change the look up. I also have to be careful because I have a nice colony of shrimp going in the tank. Most of my current plants are Java Ferns, so I can just keep moving them up a bit at a time as I add new gravel. What do you think? (I'm also being cautious because years ago I removed all the gravel in a different tank and totally crashed everything-not good...) 1 Link to comment Share on other sites More sharing options...
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