Fish are awesome pets, but they’re not always the brightest of creatures.įish sometimes rub up against rocks and decor with sharp edges and hurt themselves, sometimes pretty badly. No Sharp Edges!īe careful about rocks, real or not, that have sharp edges. They’re just glad to have something that fits their needs. I promise, the fish aren’t going to jump out of the tank to protest being given fake rocks. The “rocks” you put in your tank don’t necessarily have to be real rocks. Without some sort of rocks in the tank, they may feel too stressed to spawn or rear fry. Angelfish, discus, severums and a whole lot more like to lay their eggs either in a cave or on a flat rock. Many species also use rocks when they’re breeding.
That way, they feel like they have some cover and aren’t exposed to predators. They will pick out a cave and then defend it against any other fish that tries to move in.Įven species that aren’t considered full-time “cave dwellers” like to have a hidey hole that they can retreat to if they’re feeling stressed.įor example, I have a big Texas cichlid that really isn’t supposed to live in a cave, but he will jet into the rockwork I have in the tank any time he feels threatened.Īnd lots of cichlids that don’t want to hide inside a cave like to hang out behind large rocks. Many species of cichlids like to hide in caves formed by rocks, especially Mbuna African cichlids. Once more decor was put in the tank, he staked out one corner instead of claiming the every inch of the aquarium.
I had a particularly homicidal severum who decided an entire 55 gallon was his. I’ve seen really territorial cichlids try to defend the entire tank if they don’t have a way to tell one area from another. Having enough rocks and decor in the tank is helpful since the fish use them as borders that they don’t go beyond. They don’t think in terms of, “My area is in the back left corner of the tank.” It’s more like, “My territory is between this rock and that plant.” So having rocks in the tank is handy for a number of reasons.Ĭichlids use rocks as a way to mark out their territory. Most cichlids are territorial, like really, really territorial.
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Penn-Plax Deco-Replicas Granite Aquarium Ornament & Hideaway 8 Piece Set – Realistic Stone.
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Underwater Galleries Big Rock Box, 10 Large Ceramic Cichlid Stones, Assorted Stylesĭeep Blue Professional ADB80401 Large Texas Holey Rock Synthetic Coral for Aquarium, 12-Inch Natural Slate Stone 3 to 5 inch Rocks for Miniature and Fairy Garden, Aquascaping Aquariums, Reptile.Īqualexs Aquarium Ohko Dragon Stone Rock Mixed Sizes Pisces 9 lb Maple Aquascaping Rock for Aquarium (AM-ROCK003) Therefore, you need to ensure that they are not going to dig out the area under your rocks and that the caves are so secure that they will not fall when bumped in to.4LBS of Aquascaping Seiryu Stone Rock Aquarium Tropical Fish Plant Shrimp Driftwood by Seiryu Stone Make sure your rocks are stable – Remember that fish can dig out substrate and bump into rocks all the time.If you are going to have a good deal of rocks in your aquarium then you will need a thicker layer of substrate to disperse the weight. Sometimes, you can push on the bottom layer so much that you end up moving all of the substrate out of the way and the rock has points that then hit the bottom glass. You also need to make sure there is a layer of substrate between the bottom glass and your rock. Instead, stack the way I showed you above. In general, you don’t want your rock leaning against your glass walls. Every time you have points against the glass, there is a chance that the glass will break from the pressure. Don’t make pressure points – You don’t want a tip of rock resting on your glass, especially if that rock has rocks on top of it applying even more pressure.This is just a general rule for me because it usually provides me with more than enough rock to make large stacks and I have never had a problem with this much weight on my glass. I tend to use about double the weight of rock as gallons of water in my tank (so for example, in a 55 gallon tank I use 110 lbs of rock). Don’t add too much weight – Remember that you cannot just keep stacking and expect your aquarium to hold it.There are three main ways to make sure your rocks do not break your glass.
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