What is Your Substrate and How Deep is it?
I have small gravel in a natural color and it's rather deep... a full inch, and in some spots (to anchor plants) maybe even 1 1/4.
I now think that is too deep, so I'm curious as to what everyone else has.
For planted tanks, between 2" and 4" is good. On my first tank I did only 2" and think I should have put in more, just couldn't deal with cleaning more bags of flourite. :P
I haven't been able to find natural gravel...so I have expoy-coated stuff...
...but the community tank has whitish gravel...
...and I put black in with the goldfish...
...and I have just enough to cover the bottom...makes it easier to vacuum...
In spite of a thorough research of the literature prior to reentering fish keeping after 35 years I still did not feel comfortable "setting up" my aquarium and paid a LFS to set it up for me (big, big time slobber up) but I believe my substrate is:
1) approximately 1" of uniformly graded coarse aggregate (appears to be 1/2") mixed with laterite [bottom course]
2) approximately 2" of uniformly graded fine aggregate (appears to be 1/4") mixed with laterite [middle course]
3) approximately 1" of uniformly graded coarse aggregate [surface course].
mines is mini gravel about 3-3 1/2 inches deep. good for bottom but planning to add plant dirt for my plants on top
3 of my tanks
pool filter sand at a depth of 1-3" (depends on the tank)
one tank 3-4mm peagravel at a depth of 1" at front to 3" at back
slate and mopani as a divider
mix of 2mm gravel and sand at a depth of 1.5"
natural river rock or polished natural rock is the safest to use, as the porous rock has a tendancy to store polutants and some of the rock can imbalance the ph and other chemicals in your tank.
I use a 1.75" mixture of .5" polished river rock mixed with smooth .1" rock. The substrate is perfect for my bottom feeders and creates a nice flat surface for them to grab food. the large gravel helps keep the smaller substrate from compacting and trapping debri.
I supose it depend on the size of your fish what kind of gravel to use. Little fish and get stuck if you use to large of a gravel.
I personally use a medium grain epoxy coated gravel and its probly an inch deep. ive heard a little deeper is better if you use alot of live plants that root in. Maybe 3 inches deep for them.
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