Mangroves show them off! pretty please

[emerald crab]

Is "Hydroton" or whatever type of clay pellets you use, aquarium safe?

[Proteus]

I don't know if it is or not. But after you rince it it does not breakdown. As its fired clay. But there are many things you could use such as crush or marbles

[emerald crab]

I have a good supply of "Hydroton" (my other expensive hobby= orchids), I just don't know if it is reef safe. Is that what you use?

[Proteus]

Sweet I have a half dozen orchids. But about 45 house plants.
No I haven't used hydration yet. But it's food grade. So why not

I use small crush and lava rock

[emerald crab]

I hope there are no heavy metals to leech out.

[Proteus]

Derived from a renewable and plentiful source (clay), Hydroton is considered an ecologically sustainable growing medium. The clay is formed into pellets and fired in rotary kilns at 1200°C. This causes the clay to expand, like popcorn, and become porous. Hydroton is manufactured specifically for hydroponic cultivation. It holds water extremely well and transmits it effectively to the plant roots. Hydroton is pH stabilized and releases practically no minerals into the nutrient stream; in other words Hydroton is almost completely inert – except for offering excellent moisture and oxygen capacity to stimulate healthy root development. Hydroton can also be cleaned and reused over and over, so you can help keep your costs down compared to other growing mediums such as soil or rockwool.

Also read artical that stated that hydroton is widely used for biofiltration in ponds and aquariaiums.

[Steve-O-]

Alright just so i am clear they will be better floating with roots exposed to air under the water then planted in a deep sandbed? If this is correct im pulling mine out since i planted then last night