Substrate ideas

Yenko

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I've decided to set up a 70 gallon planted tank. It will be done cheaply; I plan to DIY everything so I can get exactly what I want. The tank will have a 20-50 gallon sump both to increase water volume and act as an easy to service replacement for a canister filter. I mess around with stuff, and a filter I can just stick my hands in and maintain/modify without even turning it off is perfect.

The lighting will be either 120 or 160 watts of flourescent light, provided by 3 or 4 40W tubes. The canopy will be DIY and allow for possible overdriving to reach even higher light output.

I don't have the money for super-expensive substrates, so pretty much anything sold for aquariums other than the plastic stuff at wal-mart is out of my price range. I could afford some real gravel, but why pay for something I can collect by the ton if need be?

I plan to use a mixture of Vermiculite and Profile (No nutrients, high CEC) covered with plain old gravel. I plan to use fairly small gravel (2-3mm), which shall be got from a local beach, or if I want some really cool-looking gravel a not so local beach. I swear, if I use the cool gravel, I will be the first aquarist on the internet to ever put this particular mineral in their tank.

For nutrients I will use either a bit of laterite or flourite or root tab fertilizer - it's super cheap at my hardware store.

Does the general setup sound good? I will be using CO2, but because I have to rely on a DIY setup, the levels will be lower than ideal but should still help.


Edit: And no, I'm not telling what my super-cool, super-secret top gravel might be. I will give you a hint. A place called "Joggins" in Nova Scotia, Canada is famous for interesting formations of this mineral. Oh, and it's completely inert. Unless you subject it to decidedly un-aquariumlike conditions. I'm being too obvious, but I'm sure I'll get a good reaction when someone guesses it. I'm not going to say if anyone is right or wrong, you'll have to come to a consensus yourselves.
 
Just warning you now - if you're going to collect your own gravel, wash it very very very well! You never know what kind of stuff is in the gravel you've just collected.

Or maybe I'm just paranoid because all the lakes and rivers around here are extremely dirty.
 
I would go with fluorite. When you get it rinse till you think it cant be anymore cleaner then rinse it again.
 
Beach sand from an Ocean beach may raise your Ph and water hardness . Lake beach sand should be o.k to use .

We just got 50 lbs medium grain sand for less than $3 U.S , Try a mason supply [ home center ,or nursery], they don't or shouldn't sell beach sand .



Rinse it well .
 
Just checked with my LFS, laterite and flourite are not avaliable here. The profile and vermiculite are easy to find, though. I'm going to pick some up soon and test it in a pot to see if plants like it.
 

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