Is limestone gravel or rocks if put in tropical aquarium considered dangerous to the fish
Is lime stone based gravel or rocks if put in tropical aquariums
considered dangerous to the fishes?
eg: marble rocks or coral or any other rocks that is composed of CaCo3 ? you can check that by putting a small piece of the rock in vinegar or any type of acid, if it produces bubbles, so it is lime.
Answers:Not dangerous necessarily. It raises the ph level of acidic tanks because the water dissolves the calcium in the rock. Its fine in basic tanks. I've had limestone in my tanks for 4 years. My ph is 8.6. A stable ph between 5-9 is important for fish, so I suggest you add limestone slowly if your ph is naturally below 7. You don't want any major swings.
Well seeing as how limestone erodes quite easily, this may cause overall blockage in the fish's gills overtime, so I would not recommend it.
no its not dangreous it's actually recommended.
It's perfectly safe and highly advisable for fish that do best in higher PH, like rift lake cichlids. For most types of fish though, it raises the parameters above the ideal and best to be avoided.
I'm personally opposed as they will dissolve slowly, and raise both your pH, and KH. That said if you have hard water/ high pH loving fish like molly, guppy, swordtails, platty, and the like. And don't do large water changes. It should be fine. The main issue is that you slowly raise your pH, and KH to a high level then do a massive water change which brings the pH, and KH levels crashing down. I personally like a bit more control over my water chemisty.
PS- Limestone is very dangerous for softwater fish like tetras, Discus, and the like.
http://www.drhelm.com/aquarium/chemistry...
As mentioned it is good for african rift lake cichlids because they like higher alkalinity water(higher ph ) But most other common aquarium fish are native to South America or Asia .These fish come from mostly acidic to perhaps neutral ph areas.These fish would not do well in a tank with limestone
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