Can I Put Chaeto in My Display Tank? The prolific green algae Chaetomorpha spp. has becomeone of the most widely used “macros” by saltwater aquarists. Generally, it ismaintained in large clumps within a specially set up refugium. In some othercases, it is kept in so-called algae reactors (indeed, Chaetomorpha isby far the most c...How to Acclimate Macroalgae The first thing you might be wondering is, "should I acclimate my macroalgae?" Absolutely, you should! It's true, macroalgae don't experience all the same types of stress that fish or invertebrates do during shipping. However, they can and do get stressed. And, that stress can be sufficiently har... Why is My Chaeto Brittle or Crumbling? Like any other living organisms, macroalgae require certain environmental conditions to survive, much less grow and reproduce. Particularly in captive environments, where conditions may be sub-optimal, unnatural and unstable, they can fail to grow. Chaetomorpha (or "chaeto") is no exception to th...Why is my Macroalgae not Growing? Macroalgae are well known for their ability to grow at an astoundingly rapid pace. For example, some kelps can grow to 200 feet long from a spore in a single season. They’re called seaweeds for a reason, right? One would think that in the sheltered environment of an aquarium (especially so in the...