Question: Slate cave and filter question

[Beth72201]

My 40 gallon breeder tank is at end of completing cycle (finally!). I have an eheim internal filter which has 3 sections to place media. Currently I have a sponge for mechanical filtration, and the other 2 sections have eheim substrate pro, for biological filtration. Should these be adequate or should I consider an alternative? I have attached a good sized spray bar to cut down on the current.

I bought quite a few pieces of slate I would like to make caves with. I soaked and washed with tap water (no cleanser of any kind), sanded any rough edges, and boiled them. I would like to "glue" pieces so don't fall and cause injury. What is best to use? Thought silicone, guy @ lfs said wouldn't hold well, his recommendation- Super Glue Gel, claims non-toxic and he uses to attach his coral to live rock in his aquarium.... stressed must be GEL and can be safely used!

Any thought or ideas would be most welcomed!

 

[Elise]

Currently I have a sponge for mechanical filtration, and the other 2 sections have eheim substrate pro, for biological filtration. Should these be adequate or should I consider an alternative?

The biological media made by Eheim is very good and there is no need to change. Doing so now would risk crashing your cycle anyway.

Thought silicone, guy @ lfs said wouldn't hold well, his recommendation- Super Glue Gel, claims non-toxic and he uses to attach his coral to live rock in his aquarium.... stressed must be GEL and can be safely used!

Silicone wouldn't hold well? What does he think they hold 200 gallon aquariums together with? I have a rimless aquarium held together with nothing but silicone. I would go with your first instinct and use aquarium safe silicone. Plus if you ever want to change the arrangement of the rock pieces you would just need a razor blade and more silicone.

As a side note, regular super glue is aquarium safe also. I don't know if he was implying it wasn't.