I would like to get a couple of weather loaches/dojos. I would be putting them in my 55 gl cold water with 2 ryukins and 1 fantail goldfish.
Would this be acceptable?
Next my substrate, it is straight aquarium gravel. (pictures attached)
Should I remove half and mix with pool filter sand or play sand.
(I want a heavy sand.)
Also this tank no longer occupies the comet and has hornwort in it now.
All thoughts, comments, recommendations accepted.

Would this be acceptable?
Next my substrate, it is straight aquarium gravel. (pictures attached)
Should I remove half and mix with pool filter sand or play sand.
(I want a heavy sand.)
Also this tank no longer occupies the comet and has hornwort in it now.
All thoughts, comments, recommendations accepted.
